Tag Archives: chrome plated shaft

China Good quality Professional Shaft Factory Small Diameter Case Harden and Chrome Plated 5mm Linear Shaft wholesaler

Product Description

Linear shaft is chrome plated and induction hardened, precision ground, and polished to the tolerances required by the demanding linear motion industry.It is suitable for use with linear support blocks and closed type slide units in linear motion applications. The high-carbon steel shaft is chrome plated for corrosion resistance, case hardened for wear resistance, and precision ground for consistent ball bushing radial clearance. The shaft diameter and length are specified for accurate fit and this shaft is suitable for use in applications, such as measuring systems, printing equipment, and computer numerical control (CNC) tools.

Features

1.Good finish and straightness: The surface is treated by special grinded, and then mirror polished. The surface is smooth, without cracks.
2.Corrosion resistance: Surface chrome plated(10um-20um)
3. Durable resistance: Adapting C45 high quality steel, high frequency hardness degree HRC60 ~ 64
4.High Accuracy : G6;Diameter tolerance:-0.005mm-.0.27mm; Length tolerance:+/-0.5mm(1M-3M);+/-1mm(3M-6M)
5. High Fitness: Chamfer on both ends, easier to install linear bearings and won’t hurt fingers when installing it.

Model Number	WCS SFC Series Solid shaft(Linear rod;Steel bar;Optical axis)
Diameter of Linear Shaft	Metric Diameter : 3mm,4mm,5mm,6mm,8mm,10mm,12mm,16mm, 20mm, 25mm, 30mm, 35mm,40mm, 50mm,60mm,80mm,100mm Inch Diameter : 6.35mm,9.525mm,12.7mm,15.875,19.05,25.4mm,31.75mm,38.1mm
Quality	ISO9001:2008 standard
Material	Steel 45#;GCR15;SUS440C
Hardness	HRC:58-62
Hardened Layer Thickness	0.8-3.00mm
Precision	G6
Roughness	Within1.5μm
Roughness(Rmax)	Within 3.0μm(Rmax)
Straightness	Not excess 1.5μm of 100mm (Rmax)
Thickness of Chrome Plated	10-20μm,15μm on average
Performance	Long life and low noise
Appearance	Smooth,Anti-corrosion,Hardened,Chrome plated
Service	Specisl requirement onmachining,such as threading,coaxial holes drilled and tapped,radial holes drilled and tapped,reduced shaft diameter etc;We could supply OEM to our customers.
Application	3d printer machine,Machine centers,Machine tools,Precision machining machines,Heavy cutting machines,Punching machines,Marble cutting machines,Automatic equipments,Grinding machines,High speed transfer equipments,Injection molding machines,Measuring equipments

Product Parameters

Detailed Photos

JLD Special Machining for Linear Shaft:

1. For the Length

We can offer linear shaft with diameterφ3mm-φ100mm. Maxium length up to 6000mm.

When you are special requirements on length, we can meet your machining requirements with different length.

When you request above 6000mm, we can anti-connect for you.

2. For Special Processing

When you have special requirements on machining. Such as threading, coaxial holes drilled and tapped,
radial holes drilled and tapped, reduced shaft diameter etc, we can machine for you,
and these special machines are finished after heat treatment and hard chromic so that ensure the precision of product.
Send us your detailed sketch or blue print for propmt quotation and action, you should be satisfied with our service.

Company Profile

HangZhou City CZPT Bearing Co., Ltd. is a professional manufacturer of linear motion products with many years’ experience. We are specialized in the producing linear shaft, linear guides, ball screws, linear bearings, linear CZPT blocks, ball screw end supports, linear rails, cam followers with good quality and competitive price. Our company is located in HangZhou city, ZHangZhoug province, close to HangZhou port and HangZhou city.

Our products are widely used in precise machines, fitness equipment, printing machines, packing machines, medical and food machines, textile machinery and other machines and supplementary equipment. Our products sell well in North America, West Europe, Australia, Southeast Asia, Middle East, South America and other regions.

After Sales Service

Our Quality:

Quality is the life . We use only the best quality material to ensure the standard of our product range is of the highest caliber.All products we sold out are strictly selected and tested by our QC department.
Warranty:
All products may have problem after used by a period of time. We provide 1 year warranty for all products.
Payment:
We accept payment via TT (Bank transfer), Paypal,Western Union, and Money Gram.
We accept bank transfer for large orders. For small order, you’d better pay via Paypal,Western union or Money Gram
Shipping:
We offer as many shipping options as possible, including DHL, UPS, TNT, FEDEX and EMS, Airfreight and by Sea.

FAQ

1. Are you factory or trading company?

We are professional manufacturer with most competitive price and high quality, 15 year’s experience.

2.What’s your product range?
We are specialized in producing linear shafts, linear bearings, linear guides, linear rails, ball screws,cam follower and other linear motion units.

3.Do you offer OEM&ODM services?
Yes, OEM, ODM is welcomed

4.How Can I get some samples?
We are honored to offer samples. You are requested to pay the shipping cost and some samples cost.

5.What does your factory do about quality control?
We uphold the tenet of “Quality is the future, we have passed ISO9001 certification, and we have strict procedures to control quality.

6. How can I get a quotation?
You can send quotation below or email to us. you can contact dirrectly with us through TM or WhatsApp,Skype as you like.Call any time if you are urgent.

Types of Screw Shafts

Screw shafts come in various types and sizes. These types include fully threaded, Lead, and Acme screws. Let’s explore these types in more detail. What type of screw shaft do you need? Which 1 is the best choice for your project? Here are some tips to choose the right screw:

Machined screw shaft

The screw shaft is a basic piece of machinery, but it can be further customized depending on the needs of the customer. Its features include high-precision threads and ridges. Machined screw shafts are generally manufactured using high-precision CNC machines or lathes. The types of screw shafts available vary in shape, size, and material. Different materials are suitable for different applications. This article will provide you with some examples of different types of screw shafts.
Ball screws are used for a variety of applications, including mounting machines, liquid crystal devices, measuring devices, and food and medical equipment. Various shapes are available, including miniature ball screws and nut brackets. They are also available without keyway. These components form a high-accuracy feed mechanism. Machined screw shafts are also available with various types of threaded ends for ease of assembly. The screw shaft is an integral part of linear motion systems.
When you need a machined screw shaft, you need to know the size of the threads. For smaller machine screws, you will need a mating part. For smaller screw sizes, the numbers will be denominated as industry Numeric Sizes. These denominations are not metric, but rather in mm, and they may not have a threads-per-inch designation. Similarly, larger machine screws will usually have threads that have a higher pitch than those with a lower pitch.
Another important feature of machine screws is that they have a thread on the entire shaft, unlike their normal counterparts. These machine screws have finer threads and are intended to be screwed into existing tapped holes using a nut. This means that these screws are generally stronger than other fasteners. They are usually used to hold together electronic components, industrial equipment, and engines. In addition to this, machine screws are usually made of a variety of materials.
screwshaft

Acme screw

An Acme screw is the most common type of threaded shaft available. It is available in a variety of materials including stainless steel and carbon steel. In many applications, it is used for large plates in crushing processes. ACME screws are self-locking and are ideal for applications requiring high clamping force and low friction. They also feature a variety of standard thread forms, including knurling and rolled worms.
Acme screws are available in a wide range of sizes, from 1/8″ to 6″. The diameter is measured from the outside of the screw to the bottom of the thread. The pitch is equal to the lead in a single start screw. The lead is equal to the pitch plus the number of starts. A screw of either type has a standard pitch and a lead. Acme screws are manufactured to be accurate and durable. They are also widely available in a wide range of materials and can be customized to fit your needs.
Another type of Acme screw is the ball screw. These have no back drive and are widely used in many applications. Aside from being lightweight, they are also able to move at faster speeds. A ball screw is similar to an Acme screw, but has a different shape. A ball screw is usually longer than an Acme screw. The ball screw is used for applications that require high linear speeds. An Acme screw is a common choice for many industries.
There are many factors that affect the speed and resolution of linear motion systems. For example, the nut position and the distance the screw travels can all affect the resolution. The total length of travel, the speed, and the duty cycle are all important. The lead size will affect the maximum linear speed and force output. If the screw is long, the greater the lead size, the higher the resolution. If the lead length is short, this may not be the most efficient option.
screwshaft

Lead screw

A lead screw is a threaded mechanical device. A lead screw consists of a cylindrical shaft, which includes a shallow thread portion and a tightly wound spring wire. This spring wire forms smooth, hard-spaced thread convolutions and provides wear-resistant engagement with the nut member. The wire’s leading and trailing ends are anchored to the shaft by means appropriate to the shaft’s composition. The screw is preferably made of stainless steel.
When selecting a lead screw, 1 should first determine its critical speed. The critical speed is the maximum rotations per minute based on the natural frequency of the screw. Excessive backlash will damage the lead screw. The maximum number of revolutions per minute depends on the screw’s minor diameter, length, assembly alignment, and end fixity. Ideally, the critical speed is 80% of its evaluated critical speed. A critical speed is not exceeded because excessive backlash would damage the lead screw and may be detrimental to the screw’s performance.
The PV curve defines the safe operating limits of a lead screw. This relationship describes the inverse relationship between contact surface pressure and sliding velocity. As the PV value increases, a lower rotation speed is required for heavier axial loads. Moreover, PV is affected by material and lubrication conditions. Besides, end fixity, which refers to the way the lead screw is supported, also affects its critical speed. Fixed-fixed and free end fixity are both possible.
Lead screws are widely used in industries and everyday appliances. In fact, they are used in robotics, lifting equipment, and industrial machinery. High-precision lead screws are widely used in the fields of engraving, fluid handling, data storage, and rapid prototyping. Moreover, they are also used in 3D printing and rapid prototyping. Lastly, lead screws are used in a wide range of applications, from measuring to assembly.

Fully threaded screw

A fully threaded screw shaft can be found in many applications. Threading is an important feature of screw systems and components. Screws with threaded shafts are often used to fix pieces of machinery together. Having fully threaded screw shafts ensures that screws can be installed without removing the nut or shaft. There are 2 major types of screw threads: coarse and fine. When it comes to coarse threads, UTS is the most common type, followed by BSP.
In the 1840s, a British engineer named Joseph Whitworth created a design that was widely used for screw threads. This design later became the British Standard Whitworth. This standard was used for screw threads in the United States during the 1840s and 1860s. But as screw threads evolved and international standards were established, this system remained largely unaltered. A new design proposed in 1864 by William Sellers improved upon Whitworth’s screw threads and simplified the pitch and surface finish.
Another reason for using fully threaded screws is their ability to reduce heat. When screw shafts are partially threaded, the bone grows up to the screw shaft and causes the cavity to be too narrow to remove it. Consequently, the screw is not capable of backing out. Therefore, fully threaded screws are the preferred choice for inter-fragmentary compression in children’s fractures. However, surgeons should know the potential complication when removing metalwork.
The full thread depth of a fully threaded screw is the distance at which a male thread can freely thread into the shaft. This dimension is typically 1 millimeter shy of the total depth of the drilled hole. This provides space for tap lead and chips. The full-thread depth also makes fully threaded screws ideal for axially-loaded connections. It is also suitable for retrofitting applications. For example, fully threaded screws are commonly used to connect 2 elements.
screwshaft

Ball screw

The basic static load rating of a ball screw is determined by the product of the maximum axial static load and the safety factor “s0”. This factor is determined by past experience in similar applications and should be selected according to the design requirements of the application. The basic static load rating is a good guideline for selecting a ball screw. There are several advantages to using a ball screw for a particular application. The following are some of the most common factors to consider when selecting a ball screw.
The critical speed limit of a ball screw is dependent on several factors. First of all, the critical speed depends on the mass, length and diameter of the shaft. Second, the deflection of the shaft and the type of end bearings determine the critical speed. Finally, the unsupported length is determined by the distance between the ball nut and end screw, which is also the distance between bearings. Generally, a ball screw with a diameter greater than 1.2 mm has a critical speed limit of 200 rpm.
The first step in manufacturing a high-quality ball screw is the choice of the right steel. While the steel used for manufacturing a ball screw has many advantages, its inherent quality is often compromised by microscopic inclusions. These microscopic inclusions may eventually lead to crack propagation, surface fatigue, and other problems. Fortunately, the technology used in steel production has advanced, making it possible to reduce the inclusion size to a minimum. However, higher-quality steels can be expensive. The best material for a ball screw is vacuum-degassed pure alloy steel.
The lead of a ball screw shaft is also an important factor to consider. The lead is the linear distance between the ball and the screw shaft. The lead can increase the amount of space between the balls and the screws. In turn, the lead increases the speed of a screw. If the lead of a ball screw is increased, it may increase its accuracy. If not, the lead of a ball screw can be improved through preloading, lubrication, and better mounting accuracy.

China Good quality Professional Shaft Factory Small Diameter Case Harden and Chrome Plated 5mm Linear Shaft wholesaler

China factory High Quality Hardened Chrome Plated Cylinder Linear Steel Shaft 25 30 40 50 60 80mm with Good quality

Product Description

Features

Model Number	WCS SFC Series Solid shaft(Linear rod;Steel bar;Optical axis)
Diameter of Linear Shaft	Metric Diameter : 3mm,4mm,5mm,6mm,8mm,10mm,12mm,16mm, 20mm, 25mm, 30mm, 35mm,40mm, 50mm,60mm,80mm,100mm Inch Diameter : 6.35mm,9.525mm,12.7mm,15.875,19.05,25.4mm,31.75mm,38.1mm
Material	Steel 45#;GCR15;
Hardness	HRC:58-62
Hardened Layer Thickness	0.8-3.00mm
Precision	G6
Roughness	Within1.5μm
Roundness	Within 3.0μm(Rmax)
Straightness	Not excess 1.5μm of 100mm (Rmax)
Thickness of Chrome Plated	10-20μm,15μm on average
Service	Specisl requirement onmachining,such as threading,coaxial holes drilled and tapped,radial holes drilled and tapped,reduced shaft diameter etc;We could supply OEM to our customers.
Application	3d printer machine,Machine centers,Machine tools,Precision machining machines,Heavy cutting machines,Punching machines,Marble cutting machines,Automatic equipments,Grinding machines,High speed transfer equipments,Injection molding machines,Measuring equipments

Product Parameters

Detailed Photos

JLD Special Machining for Linear Shaft:

1. For the Length

We can offer linear shaft with diameterφ3mm-φ100mm. Maxium length up to 6000mm.

When you are special requirements on length, we can meet your machining requirements with different length.

When you request above 6000mm, we can anti-connect for you.

2. For Special Processing

Company Profile

HangZhou City CZPT Bearing Co., Ltd. is a professional manufacturer of linear motion products with many years’ experience. We are specialized in the producing linear shaft, linear guides, ball screws, linear bearings, linear CZPT blocks, ball screw end supports, linear rails, cam followers with good quality and competitive price. Our company is located in HangZhou city, ZHangZhoug province, close to HangZhou port and HangZhou city.

After Sales Service

Our Quality:

FAQ

1. Are you factory or trading company?

We are professional manufacturer with most competitive price and high quality, 15 year’s experience.

2.What’s your product range?
We are specialized in producing linear shafts, linear bearings, linear guides, linear rails, ball screws,cam follower and other linear motion units.

3.Do you offer OEM&ODM services?
Yes, OEM, ODM is welcomed

4.How Can I get some samples?
We are honored to offer samples. You are requested to pay the shipping cost and some samples cost.

5.What does your factory do about quality control?
We uphold the tenet of “Quality is the future, we have passed ISO9001 certification, and we have strict procedures to control quality.

6. How can I get a quotation?
You can send quotation below or email to us. you can contact dirrectly with us through TM or WhatsApp,Skype as you like.Call any time if you are urgent.

The Four Basic Components of a Screw Shaft

There are 4 basic components of a screw shaft: the Head, the Thread angle, and the Threaded shank. These components determine the length, shape, and quality of a screw. Understanding how these components work together can make purchasing screws easier. This article will cover these important factors and more. Once you know these, you can select the right type of screw for your project. If you need help choosing the correct type of screw, contact a qualified screw dealer.

Thread angle

The angle of a thread on a screw shaft is the difference between the 2 sides of the thread. Threads that are unified have a 60 degree angle. Screws have 2 parts: a major diameter, also known as the screw’s outside diameter, and a minor diameter, or the screw’s root diameter. A screw or nut has a major diameter and a minor diameter. Each has its own angle, but they all have 1 thing in common – the angle of thread is measured perpendicularly to the screw’s axis.
The pitch of a screw depends on the helix angle of the thread. In a single-start screw, the lead is equal to the pitch, and the thread angle of a multiple-start screw is based on the number of starts. Alternatively, you can use a square-threaded screw. Its square thread minimizes the contact surface between the nut and the screw, which improves efficiency and performance. A square thread requires fewer motors to transfer the same load, making it a good choice for heavy-duty applications.
A screw thread has 4 components. First, there is the pitch. This is the distance between the top and bottom surface of a nut. This is the distance the thread travels in a full revolution of the screw. Next, there is the pitch surface, which is the imaginary cylinder formed by the average of the crest and root height of each tooth. Next, there is the pitch angle, which is the angle between the pitch surface and the gear axis.
screwshaft

Head

There are 3 types of head for screws: flat, round, and hexagonal. They are used in industrial applications and have a flat outer face and a conical interior. Some varieties have a tamper-resistant pin in the head. These are usually used in the fabrication of bicycle parts. Some are lightweight, and can be easily carried from 1 place to another. This article will explain what each type of head is used for, and how to choose the right 1 for your screw.
The major diameter is the largest diameter of the thread. This is the distance between the crest and the root of the thread. The minor diameter is the smaller diameter and is the distance between the major and minor diameters. The minor diameter is half the major diameter. The major diameter is the upper surface of the thread. The minor diameter corresponds to the lower extreme of the thread. The thread angle is proportional to the distance between the major and minor diameters.
Lead screws are a more affordable option. They are easier to manufacture and less expensive than ball screws. They are also more efficient in vertical applications and low-speed operations. Some types of lead screws are also self-locking, and have a high coefficient of friction. Lead screws also have fewer parts. These types of screw shafts are available in various sizes and shapes. If you’re wondering which type of head of screw shaft to buy, this article is for you.

Threaded shank

Wood screws are made up of 2 parts: the head and the shank. The shank is not threaded all the way up. It is only partially threaded and contains the drive. This makes them less likely to overheat. Heads on wood screws include Oval, Round, Hex, Modified Truss, and Flat. Some of these are considered the “top” of the screw.
Screws come in many sizes and thread pitches. An M8 screw has a 1.25-mm thread pitch. The pitch indicates the distance between 2 identical threads. A pitch of 1 is greater than the other. The other is smaller and coarse. In most cases, the pitch of a screw is indicated by the letter M followed by the diameter in millimetres. Unless otherwise stated, the pitch of a screw is greater than its diameter.
Generally, the shank diameter is smaller than the head diameter. A nut with a drilled shank is commonly used. Moreover, a cotter pin nut is similar to a castle nut. Internal threads are usually created using a special tap for very hard metals. This tap must be followed by a regular tap. Slotted machine screws are usually sold packaged with nuts. Lastly, studs are often used in automotive and machine applications.
In general, screws with a metric thread are more difficult to install and remove. Fortunately, there are many different types of screw threads, which make replacing screws a breeze. In addition to these different sizes, many of these screws have safety wire holes to keep them from falling. These are just some of the differences between threaded screw and non-threaded. There are many different types of screw threads, and choosing the right 1 will depend on your needs and your budget.
screwshaft

Point

There are 3 types of screw heads with points: cone, oval, and half-dog. Each point is designed for a particular application, which determines its shape and tip. For screw applications, cone, oval, and half-dog points are common. Full dog points are not common, and they are available in a limited number of sizes and lengths. According to ASTM standards, point penetration contributes as much as 15% of the total holding power of the screw, but a cone-shaped point may be more preferred in some circumstances.
There are several types of set screws, each with its own advantage. Flat-head screws reduce indentation and frequent adjustment. Dog-point screws help maintain a secure grip by securing the collar to the screw shaft. Cup-point set screws, on the other hand, provide a slip-resistant connection. The diameter of a cup-point screw is usually half of its shaft diameter. If the screw is too small, it may slack and cause the screw collar to slip.
The UNF series has a larger area for tensile stress than coarse threads and is less prone to stripping. It’s used for external threads, limited engagement, and thinner walls. When using a UNF, always use a standard tap before a specialized tap. For example, a screw with a UNF point is the same size as a type C screw but with a shorter length.

Spacer

A spacer is an insulating material that sits between 2 parts and centers the shaft of a screw or other fastener. Spacers come in different sizes and shapes. Some of them are made of Teflon, which is thin and has a low coefficient of friction. Other materials used for spacers include steel, which is durable and works well in many applications. Plastic spacers are available in various thicknesses, ranging from 4.6 to 8 mm. They’re suitable for mounting gears and other items that require less contact surface.
These devices are used for precision fastening applications and are essential fastener accessories. They create clearance gaps between the 2 joined surfaces or components and enable the screw or bolt to be torqued correctly. Here’s a quick guide to help you choose the right spacer for the job. There are many different spacers available, and you should never be without one. All you need is a little research and common sense. And once you’re satisfied with your purchase, you can make a more informed decision.
A spacer is a component that allows the components to be spaced appropriately along a screw shaft. This tool is used to keep space between 2 objects, such as the spinning wheel and an adjacent metal structure. It also helps ensure that a competition game piece doesn’t rub against an adjacent metal structure. In addition to its common use, spacers can be used in many different situations. The next time you need a spacer, remember to check that the hole in your screw is threaded.
screwshaft

Nut

A nut is a simple device used to secure a screw shaft. The nut is fixed on each end of the screw shaft and rotates along its length. The nut is rotated by a motor, usually a stepper motor, which uses beam coupling to accommodate misalignments in the high-speed movement of the screw. Nuts are used to secure screw shafts to machined parts, and also to mount bearings on adapter sleeves and withdrawal sleeves.
There are several types of nut for screw shafts. Some have radial anti-backlash properties, which prevent unwanted radial clearances. In addition, they are designed to compensate for thread wear. Several nut styles are available, including anti-backlash radial nuts, which have a spring that pushes down on the nut’s flexible fingers. Axial anti-backlash nuts also provide thread-locking properties.
To install a ball nut, you must first align the tangs of the ball and nut. Then, you must place the adjusting nut on the shaft and tighten it against the spacer and spring washer. Then, you need to lubricate the threads, the ball grooves, and the spring washers. Once you’ve installed the nut, you can now install the ball screw assembly.
A nut for screw shaft can be made with either a ball or a socket. These types differ from hex nuts in that they don’t need end support bearings, and are rigidly mounted at the ends. These screws can also have internal cooling mechanisms to improve rigidity. In this way, they are easier to tension than rotating screws. You can also buy hollow stationary screws for rotator nut assemblies. This type is great for applications requiring high heat and wide temperature changes, but you should be sure to follow the manufacturer’s instructions.

China factory High Quality Hardened Chrome Plated Cylinder Linear Steel Shaft 25 30 40 50 60 80mm with Good quality

China Good quality Induction Harden and Hard Chrome Plated Transmission Shaft 20mm for CNC Router and Gym Equipment with Best Sales

Product Description

Features

Model Number	WCS SFC Series Solid shaft(Linear rod;Steel bar;Optical axis)
Diameter of Linear Shaft	Metric Diameter : 3mm,4mm,5mm,6mm,8mm,10mm,12mm,16mm, 20mm, 25mm, 30mm, 35mm,40mm, 50mm,60mm,80mm,100mm Inch Diameter : 6.35mm,9.525mm,12.7mm,15.875,19.05,25.4mm,31.75mm,38.1mm
Quality	ISO9001:2008 standard
Material	Steel 45#;GCR15;SUS440C
Hardness	HRC:58-62
Hardened Layer Thickness	0.8-3.00mm
Precision	G6
Roughness	Within1.5μm
Roughness(Rmax)	Within 3.0μm(Rmax)
Straightness	Not excess 1.5μm of 100mm (Rmax)
Thickness of Chrome Plated	10-20μm,15μm on average
Performance	Long life and low noise
Appearance	Smooth,Anti-corrosion,Hardened,Chrome plated
Service	Specisl requirement onmachining,such as threading,coaxial holes drilled and tapped,radial holes drilled and tapped,reduced shaft diameter etc;We could supply OEM to our customers.
Application	3d printer machine,Machine centers,Machine tools,Precision machining machines,Heavy cutting machines,Punching machines,Marble cutting machines,Automatic equipments,Grinding machines,High speed transfer equipments,Injection molding machines,Measuring equipments

Product Parameters

Detailed Photos

JLD Special Machining for Linear Shaft:

1. For the Length

We can offer linear shaft with diameterφ3mm-φ100mm. Maxium length up to 6000mm.

When you are special requirements on length, we can meet your machining requirements with different length.

When you request above 6000mm, we can anti-connect for you.

2. For Special Processing

Company Profile

After Sales Service

Our Quality:

FAQ

1. Are you factory or trading company?

We are professional manufacturer with most competitive price and high quality, 15 year’s experience.

2.What’s your product range?
We are specialized in producing linear shafts, linear bearings, linear guides, linear rails, ball screws,cam follower and other linear motion units.

3.Do you offer OEM&ODM services?
Yes, OEM, ODM is welcomed

4.How Can I get some samples?
We are honored to offer samples. You are requested to pay the shipping cost and some samples cost.

5.What does your factory do about quality control?
We uphold the tenet of “Quality is the future, we have passed ISO9001 certification, and we have strict procedures to control quality.

6. How can I get a quotation?
You can send quotation below or email to us. you can contact dirrectly with us through TM or WhatsApp,Skype as you like.Call any time if you are urgent.

Lead Screws and Clamp Style Collars

If you have a lead screw, you’re probably interested in learning about the Acme thread on this type of shaft. You might also be interested in finding out about the Clamp style collars and Ball screw nut. But before you buy a new screw, make sure you understand what the terminology means. Here are some examples of screw shafts:

Acme thread

The standard ACME thread on a screw shaft is made of a metal that is resistant to corrosion and wear. It is used in a variety of applications. An Acme thread is available in a variety of sizes and styles. General purpose Acme threads are not designed to handle external radial loads and are supported by a shaft bearing and linear guide. Their design is intended to minimize the risk of flank wedging, which can cause friction forces and wear. The Centralizing Acme thread standard caters to applications without radial support and allows the thread to come into contact before its flanks are exposed to radial loads.
The ACME thread was first developed in 1894 for machine tools. While the acme lead screw is still the most popular screw in the US, European machines use the Trapezoidal Thread (Metric Acme). The acme thread is a stronger and more resilient alternative to square threads. It is also easier to cut than square threads and can be cut by using a single-point threading die.
Similarly to the internal threads, the metric versions of Acme are similar to their American counterparts. The only difference is that the metric threads are generally wider and are used more frequently in industrial settings. However, the metric-based screw threads are more common than their American counterparts worldwide. In addition, the Acme thread on screw shafts is used most often on external gears. But there is still a small minority of screw shafts that are made with a metric thread.
ACME screws provide a variety of advantages to users, including self-lubrication and reduced wear and tear. They are also ideal for vertical applications, where a reduced frictional force is required. In addition, ACME screws are highly resistant to back-drive and minimize the risk of backlash. Furthermore, they can be easily checked with readily available thread gauges. So, if you’re looking for a quality ACME screw for your next industrial project, look no further than ACME.
screwshaft

Lead screw coatings

The properties of lead screw materials affect their efficiency. These materials have high anti-corrosion, thermal resistance, and self-lubrication properties, which eliminates the need for lubrication. These coating materials include polytetrafluoroethylene (PFE), polyether ether ketone (PEK), and Vespel. Other desirable properties include high tensile strength, corrosion resistance, and rigidity.
The most common materials for lead screws are carbon steel, stainless steel, and aluminum. Lead screw coatings can be PTFE-based to withstand harsh environments and remove oil and grease. In addition to preventing corrosion, lead screw coatings improve the life of polymer parts. Lead screw assembly manufacturers offer a variety of customization options for their lead screw, including custom-molded nuts, thread forms, and nut bodies.
Lead screws are typically measured in rpm, or revolutions per minute. The PV curve represents the inverse relationship between contact surface pressure and sliding velocity. This value is affected by the material used in the construction of the screw, lubrication conditions, and end fixity. The critical speed of lead screws is determined by their length and minor diameter. End fixity refers to the support for the screw and affects its rigidity and critical speed.
The primary purpose of lead screws is to enable smooth movement. To achieve this, lead screws are usually preloaded with axial load, enabling consistent contact between a screw’s filets and nuts. Lead screws are often used in linear motion control systems and feature a large area of sliding contact between male and female threads. Lead screws can be manually operated or mortised and are available in a variety of sizes and materials. The materials used for lead screws include stainless steel and bronze, which are often protected by a PTFE type coating.
These screws are made of various materials, including stainless steel, bronze, and various plastics. They are also made to meet specific requirements for environmental conditions. In addition to lead screws, they can be made of stainless steel, aluminum, and carbon steel. Surface coatings can improve the screw’s corrosion resistance, while making it more wear resistant in tough environments. A screw that is coated with PTFE will maintain its anti-corrosion properties even in tough environments.
screwshaft

Clamp style collars

The screw shaft clamp style collar is a basic machine component, which is attached to the shaft via multiple screws. These collars act as mechanical stops, load bearing faces, or load transfer points. Their simple design makes them easy to install. This article will discuss the pros and cons of this style of collar. Let’s look at what you need to know before choosing a screw shaft clamp style collar. Here are some things to keep in mind.
Clamp-style shaft collars are a versatile mounting option for shafts. They have a recessed screw that fully engages the thread for secure locking. Screw shaft clamp collars come in different styles and can be used in both drive and power transmission applications. Listed below are the main differences between these 2 styles of collars. They are compatible with all types of shafts and are able to handle axial loads of up to 5500 pounds.
Clamp-style shaft collars are designed to prevent the screw from accidentally damaging the shaft when tightened. They can be tightened with a set screw to counteract the initial clamping force and prevent the shaft from coming loose. However, when tightening the screw, you should use a torque wrench. Using a set screw to tighten a screw shaft collar can cause it to warp and reduce the surface area that contacts the shaft.
Another key advantage to Clamp-style shaft collars is that they are easy to install. Clamp-style collars are available in one-piece and two-piece designs. These collars lock around the shaft and are easy to remove and install. They are ideal for virtually any shaft and can be installed without removing any components. This type of collar is also recommended for those who work on machines with sensitive components. However, be aware that the higher the OD, the more difficult it is to install and remove the collar.
Screw shaft clamp style collars are usually one-piece. A two-piece collar is easier to install than a one-piece one. The two-piece collars provide a more effective clamping force, as they use the full seating torque. Two-piece collars have the added benefit of being easy to install because they require no tools to install. You can disassemble one-piece collars before installing a two-piece collar.
screwshaft

Ball screw nut

The proper installation of a ball screw nut requires that the nut be installed on the center of the screw shaft. The return tubes of the ball nut must be oriented upward so that the ball nut will not overtravel. The adjusting nut must be tightened against a spacer or spring washer, then the nut is placed on the screw shaft. The nut should be rotated several times in both directions to ensure that it is centered.
Ball screw nuts are typically manufactured with a wide range of preloads. Large preloads are used to increase the rigidity of a ball screw assembly and prevent backlash, the lost motion caused by a clearance between the ball and nut. Using a large amount of preload can lead to excessive heat generation. The most common preload for ball screw nuts is 1 to 3%. This is usually more than enough to prevent backlash, but a higher preload will increase torque requirements.
The diameter of a ball screw is measured from its center, called the ball circle diameter. This diameter represents the distance a ball will travel during 1 rotation of the screw shaft. A smaller diameter means that there are fewer balls to carry the load. Larger leads mean longer travels per revolution and higher speeds. However, this type of screw cannot carry a greater load capacity. Increasing the length of the ball nut is not practical, due to manufacturing constraints.
The most important component of a ball screw is a ball bearing. This prevents excessive friction between the ball and the nut, which is common in lead-screw and nut combinations. Some ball screws feature preloaded balls, which avoid “wiggle” between the nut and the ball. This is particularly desirable in applications with rapidly changing loads. When this is not possible, the ball screw will experience significant backlash.
A ball screw nut can be either single or multiple circuits. Single or multiple-circuit ball nuts can be configured with 1 or 2 independent closed paths. Multi-circuit ball nuts have 2 or more circuits, making them more suitable for heavier loads. Depending on the application, a ball screw nut can be used for small clearance assemblies and compact sizes. In some cases, end caps and deflectors may be used to feed the balls back to their original position.

China Good quality Induction Harden and Hard Chrome Plated Transmission Shaft 20mm for CNC Router and Gym Equipment with Best Sales

China high quality Professional Manufacturer Heat Treatment Hardened and Hard Chrome Plated Round Solid Linear Transmission Steel Shaft (DIA 3mm-100mm) wholesaler

Product Description

Features

Model Number	WCS SFC Series Solid shaft(Linear rod;Steel bar;Optical axis)
Diameter of Linear Shaft	Metric Diameter : 3mm,4mm,5mm,6mm,8mm,10mm,12mm,16mm, 20mm, 25mm, 30mm, 35mm,40mm, 50mm,60mm,80mm,100mm Inch Diameter : 6.35mm,9.525mm,12.7mm,15.875,19.05,25.4mm,31.75mm,38.1mm
Quality	ISO9001:2008 standard
Material	Steel 45#;GCR15;SUS440C
Hardness	HRC:58-62
Hardened Layer Thickness	0.8-3.00mm
Precision	G6
Roughness	Within1.5μm
Roughness(Rmax)	Within 3.0μm(Rmax)
Straightness	Not excess 1.5μm of 100mm (Rmax)
Thickness of Chrome Plated	10-20μm,15μm on average
Performance	Long life and low noise
Appearance	Smooth,Anti-corrosion,Hardened,Chrome plated
Service	Specisl requirement onmachining,such as threading,coaxial holes drilled and tapped,radial holes drilled and tapped,reduced shaft diameter etc;We could supply OEM to our customers.
Application	3d printer machine,Machine centers,Machine tools,Precision machining machines,Heavy cutting machines,Punching machines,Marble cutting machines,Automatic equipments,Grinding machines,High speed transfer equipments,Injection molding machines,Measuring equipments

Product Parameters

Detailed Photos

JLD Special Machining for Linear Shaft:

1. For the Length

We can offer linear shaft with diameterφ3mm-φ100mm. Maxium length up to 6000mm.

When you are special requirements on length, we can meet your machining requirements with different length.

When you request above 6000mm, we can anti-connect for you.

2. For Special Processing

Company Profile

After Sales Service

Our Quality:

FAQ

1. Are you factory or trading company?

We are professional manufacturer with most competitive price and high quality, 15 year’s experience.

2.What’s your product range?
We are specialized in producing linear shafts, linear bearings, linear guides, linear rails, ball screws,cam follower and other linear motion units.

3.Do you offer OEM&ODM services?
Yes, OEM, ODM is welcomed

4.How Can I get some samples?
We are honored to offer samples. You are requested to pay the shipping cost and some samples cost.

5.What does your factory do about quality control?
We uphold the tenet of “Quality is the future, we have passed ISO9001 certification, and we have strict procedures to control quality.

6. How can I get a quotation?
You can send quotation below or email to us. you can contact dirrectly with us through TM or WhatsApp,Skype as you like.Call any time if you are urgent.

Lead Screws and Clamp Style Collars

Acme thread

Lead screw coatings

Clamp style collars

Ball screw nut

China high quality Professional Manufacturer Heat Treatment Hardened and Hard Chrome Plated Round Solid Linear Transmission Steel Shaft (DIA 3mm-100mm) wholesaler

China high quality Professional Shaft Factory Micro Diameter Hardened and Chrome Plated 4mm Linear Shaft near me manufacturer

Product Description

Features

Model Number	WCS SFC Series Solid shaft(Linear rod;Steel bar;Optical axis)
Diameter of Linear Shaft	Metric Diameter : 3mm,4mm,5mm,6mm,8mm,10mm,12mm,16mm, 20mm, 25mm, 30mm, 35mm,40mm, 50mm,60mm,80mm,100mm Inch Diameter : 6.35mm,9.525mm,12.7mm,15.875,19.05,25.4mm,31.75mm,38.1mm
Quality	ISO9001:2008 standard
Material	Steel 45#;GCR15;SUS440C
Hardness	HRC:58-62
Hardened Layer Thickness	0.8-3.00mm
Precision	G6
Roughness	Within1.5μm
Roughness(Rmax)	Within 3.0μm(Rmax)
Straightness	Not excess 1.5μm of 100mm (Rmax)
Thickness of Chrome Plated	10-20μm,15μm on average
Performance	Long life and low noise
Appearance	Smooth,Anti-corrosion,Hardened,Chrome plated
Service	Specisl requirement onmachining,such as threading,coaxial holes drilled and tapped,radial holes drilled and tapped,reduced shaft diameter etc;We could supply OEM to our customers.
Application	3d printer machine,Machine centers,Machine tools,Precision machining machines,Heavy cutting machines,Punching machines,Marble cutting machines,Automatic equipments,Grinding machines,High speed transfer equipments,Injection molding machines,Measuring equipments

Product Parameters

Detailed Photos

JLD Special Machining for Linear Shaft:

1. For the Length

We can offer linear shaft with diameterφ3mm-φ100mm. Maxium length up to 6000mm.

When you are special requirements on length, we can meet your machining requirements with different length.

When you request above 6000mm, we can anti-connect for you.

2. For Special Processing

Company Profile

After Sales Service

Our Quality:

FAQ

1. Are you factory or trading company?

We are professional manufacturer with most competitive price and high quality, 15 year’s experience.

2.What’s your product range?
We are specialized in producing linear shafts, linear bearings, linear guides, linear rails, ball screws,cam follower and other linear motion units.

3.Do you offer OEM&ODM services?
Yes, OEM, ODM is welcomed

4.How Can I get some samples?
We are honored to offer samples. You are requested to pay the shipping cost and some samples cost.

5.What does your factory do about quality control?
We uphold the tenet of “Quality is the future, we have passed ISO9001 certification, and we have strict procedures to control quality.

6. How can I get a quotation?
You can send quotation below or email to us. you can contact dirrectly with us through TM or WhatsApp,Skype as you like.Call any time if you are urgent.

Types of Screw Shafts

Machined screw shaft

Acme screw

Lead screw

Fully threaded screw

Ball screw

China high quality Professional Shaft Factory Micro Diameter Hardened and Chrome Plated 4mm Linear Shaft near me manufacturer

China Best Sales CNC Turning 1045 Chrome Plated Steel Motor Shaft with Hot selling

Product Description

CNC Turning 1045 Chrome Plated Steel Motor Shaft

We have widely range of design and manufacturing including custom cnc machining, cnc
machined parts, non-standard machine parts, machined casting parts and precision turned
parts that the materials of hardware parts are in steel, stainless steel, brass, aluminum
and plastic. In addition, we specialized in precision parts and components machining to
serve the electronics, automotive parts, astronautical parts, medical appliances and hand
tool industries.
if you have special requirement about the parts material, tolerance, process, treatment,
equipment or test, such as seamless copper fin tubing, aluminum alloy 535 casting, and
glass-lined alloy casting, special paint painting, 5 axis centers, 3D Coordinate
Measurement Machines (CMM) test … just feel free to contact us, we will try our best to
meet the needs of you.

Surface: As your requirement
Material: Steel / aluminum / brass / iron / zinc / alloy
Any other material and dimension depends on customers’ demand.

Usage: Machinery / furniture / toy / woodboard / wall
Manufacturing process: Stamping parts
Euipment: CNC Machining machine
Testing equipment: Projector

Industry Focus Appliance/ Automotive/ Agricultural Electronics/ Industrial/ Marine Mining/ Hydraulics/ Valves Oil and Gas/ Electrical/ Construction
Industry Standards ISO 9001: 2008 PPAP RoHS Compliant

Additional Capabilities CAD Design Services CAM Programming Services Coordinate Measuring Machines (CMM) Reverse Engineering

Specification	CNC Turning 1045 Chrome Plated Steel Motor Shaft
Material	Stainless steel, copper, brass, carbon steel, aluminum (according to customer’s requirement.
Surface Treatment	Zn-plating, Ni-plating, Cr-plating, Tin-plating, copper-plating, the wreath oxygen resin spraying, the heat disposing, hot-dip galvanizing, black oxide coating, painting, powdering, color zinc-plated, blue black zinc-plated, rust preventive oil, titanium alloy galvanized, silver plating, plastic, electroplating, anodizing etc.
Main Products	Precision screw,bolt, nuts,fastener,knob,pins, bushing, sleeve,gear, stamping parts,washer,gasket, plastic molding injection parts, standoff,CNC machining service,accessories etc.
Producing Equipment	CNC machine , automatic lathe machine,stamping machine,CNC milling machine,rolling machine,lasering,tag grinding machine etc.
Management System	ISO9001 – 2008
Available Certificate	RoHS, SGS, Material Certification
Testing Equipment	Projecting apparatus, Salt Spray Test, Durometer, and Coating thickness tester , 2D projector
Lead time	10-15 working days as usual,It will based on the detailed order quantity.
Managing Returned Goods	With quality problem or deviation from drawings
Delivery of Samples	By DHL,Fedex,UPS, TNT,EMS^^
Warranty	Replacement at all our cost for rejected products
Main Markets	North America, South America, Eastern Europe , West Europe , North Europe, South Europe, Asia
How to order	* You send us drawing or sample
	* We carry through project assessment
	* We give you our design for your confirmation
	* We make the sample and send it to you after you confirmed our design
	* You confirm the sample then place an order and pay us 30% deposit
	* We start producing
	* When the goods is done, you pay us the balance after you confirmed pictures or tracking numbers.
	* Trade is done, thank you!!
Applications	Toy,Automotive, instrument, electrical equipment, household appliances, furniture, mechanical equipment, daily living equipment, electronic sports equipment, light industry products, sanitation machinery, market/ hotel equipment supplies, artware etc.

SUS303 & SUS 304 Stainless Steel Machining:
As well as reducing the corrosion resistance, the sulphur additions in 303 also result in poor weld ability and reduced form ability compared to Grade 304. Sharp bends should not be attempted in 303. A practical compromise alternative may be a 304 Ugima Improved Machining ability grade – this does not machine as readily as 303, but does offer better form ability (as well as better weld ability and corrosion resistance).
Heat Treatment:
Solution Treatment (Annealing) – Heat to 1571-1120°C and cool rapidly. This grade cannot be hardened by thermal treatment.

Machining:
A “Ugima” improved machinability version of grade 303 is available in round bar products. This machines significantly better even than standard 303, giving very high machining rates and lower tool wear in many operations.

Characteristics & Function of CNC Machining Stainless Steel:
SUS 303:
Nuts and Bolts, Bushings, Shafts, Aircraft Fittings, Gears.
Electrical Switchgear Components.
In general any component that is heavily machined and where the corrosion resistance and fabrication properties of 303 are viable.

SUS 304:
Food processing equipment, particularly in beer brewing, milk processing & wine making.
Kitchen benches, sinks, troughs, equipment and appliances.
Architectural panelling, railings & trim.
Chemical containers, including for transport.
Heat Exchangers.
Woven or welded screens for mining, quarrying & water filtration.
Threaded fasteners, Springs.

SUS 316:
Food preparation equipment particularly in chloride environments.
Laboratory benches & equipment, Threaded fasteners, Springs.
Coastal architectural panelling, railings & trim.
Boat fittings, Chemical containers, including for transport.
Heat Exchangers, Woven or welded screens for mining, quarrying & water filtration.
316 Higher resistance to pitting and crevice corrosion is required, in chloride environments. A lower machining ability can be accepted.

SUS 416:
Valve Parts, Pump Shafts, Automatic Screw Machined Parts.
Motor Shafts, Washing Machine Components.
Bolts and Nuts, Studs, Gears.
Even higher machining ability than 303 is needed, and a lower corrosion resistance can be tolerated. Or hardening by thermal treatment is required, while maintaining a high machining ability.

Types of Screw Shafts

Machined screw shaft

Acme screw

Lead screw

Fully threaded screw

Ball screw

China Best Sales CNC Turning 1045 Chrome Plated Steel Motor Shaft with Hot selling

China Custom 45# Steel Linear Optical Shaft CZPT Chrome Plated Rod Piston Rod Soft Shaft Hard Shaft Generation Processing with high quality

Product Description

Straight line shaft is a product that can be made into straight line movement because of the guiding function of sliding bearing.

The necessary conditions of linear motion system are: simple design, optimal performance, low maintenance cost, durable materials, high-frequency heat treatment, accurate
Outside diameter size, roundness, true flatness and surface treatment, etc.
Model style: diameter 5- 607
The material of carbon steel
Hardness HRC60 ± 2
Hardening thickness
0.8 mm – 3 mm
Length 0-6000mm (if you need more than 6000mm, we can reverse connection for you)
Precision g6
The roughness is within 1.5μm
Straightness 1.5μm 100mm (Rmax)
Other straight shaft types solid shaft, hollow shaft, threaded shaft, stainless steel shaft
Other materials bearing steel GCr15, carbon steel 45#, SUS440C
We are a professional bearing manufacturer in China, high quality bearings can be customized according to OEM and according to your requirements

Range of application

1. The solid shaft

Generally applicable to industrial robots, as professional measuring instruments, medical instruments, precision machine tools, aircraft shafts, pneumatic mandrel moving parts.

2. The hollow shaft

With the advantages of reducing the weight and simplifying the structure of the equipment, the inner measuring wire, compressed air, and lubricating oil and hydraulic oil can be worn again.

3, stainless steel shaft

Generally suitable for chemicals, seawater and so on

Used as part of a measurement in the presence of a substance.

Special processing shaft after heat treatment finishing, all models are hard chrome plated automation equipment.

Special processing

1.The length of the

We can provide straight spools with diameters φ5mm-φ150mm. Maximum length up to 6000 mm.

When you have special requirements for length, we can meet your processing requirements of different lengths.

When you require more than 6000mm, we can reverse connection for you.

2. Special processing

When you have special requirements for processing. Such as thread, with the shaft hole drilling tapping, radial hole drilling tapping, shaft diameter diameter, etc., we can process for you, these special machines after heat treatment and hard chromium treatment, to ensure the accuracy of products.

Send your detailed sketches or blueprints to us for quotation and action, reply to us after you find our factory price ideal for processing.

Detailed Photos

Company Profile

ZHangZhoug HangZhou KaiYaDe bearing co., LTD. Is a have many years experience of linear motion products professional manufacturers. We specialized in the production of straight axis, linear guide, ball screw, linear bearings, linear guide, ball screw end support, linear guide, CAM follower and of good quality and competitive price. My company is located in HangZhou city, zHangZhoug province, close to HangZhou port and HangZhou city.
Products are widely used in precision machinery, fitness equipment, printing machinery, packaging machinery, medical machinery, food machinery, textile machinery and related equipment. Products sell well in North America, Western Europe, Australia, southeast Asia, the Middle East, South America and other regions.

FAQ

1. Are you a factory or trading company?
We are the most competitive price and high quality professional manufacturers, has 12 years of experience.
2. What is your product range?
Specializing in the production of straight axis, linear bearings, linear guide, linear guide, ball screw, linear motion unit such as CAM follower.
3. Do you provide OEM&ODM service?
B: yes. Welcome OEM, ODM
4. How can I get some samples?
We are very honored to provide samples. You need to pay the freight and some sample fee.
5. How is the quality control of your factory?
We uphold the tenet of “quality is the future”, we have passed CE certification, we have strict quality control procedures.
6. How can I get quotation?
You can send below quotation or send email to us. You can contact us directly by TM or WhatsApp and Skype as you like. If you have an emergency, please call us at any time.

Visit the Factory environment

Screw Shaft Features Explained

When choosing the screw shaft for your application, you should consider the features of the screws: threads, lead, pitch, helix angle, and more. You may be wondering what these features mean and how they affect the screw’s performance. This article explains the differences between these factors. The following are the features that affect the performance of screws and their properties. You can use these to make an informed decision and purchase the right screw. You can learn more about these features by reading the following articles.

Threads

The major diameter of a screw thread is the larger of the 2 extreme diameters. The major diameter of a screw is also known as the outside diameter. This dimension can’t be directly measured, but can be determined by measuring the distance between adjacent sides of the thread. In addition, the mean area of a screw thread is known as the pitch. The diameter of the thread and pitch line are directly proportional to the overall size of the screw.
The threads are classified by the diameter and pitch. The major diameter of a screw shaft has the largest number of threads; the smaller diameter is called the minor diameter. The thread angle, also known as the helix angle, is measured perpendicular to the axis of the screw. The major diameter is the largest part of the screw; the minor diameter is the lower end of the screw. The thread angle is the half distance between the major and minor diameters. The minor diameter is the outer surface of the screw, while the top surface corresponds to the major diameter.
The pitch is measured at the crest of a thread. In other words, a 16-pitch thread has a diameter of 1 sixteenth of the screw shaft’s diameter. The actual diameter is 0.03125 inches. Moreover, a large number of manufacturers use this measurement to determine the thread pitch. The pitch diameter is a critical factor in successful mating of male and female threads. So, when determining the pitch diameter, you need to check the thread pitch plate of a screw.
screwshaft

Lead

In screw shaft applications, a solid, corrosion-resistant material is an important requirement. Lead screws are a robust choice, which ensure shaft direction accuracy. This material is widely used in lathes and measuring instruments. They have black oxide coatings and are suited for environments where rusting is not acceptable. These screws are also relatively inexpensive. Here are some advantages of lead screws. They are highly durable, cost-effective, and offer high reliability.
A lead screw system may have multiple starts, or threads that run parallel to each other. The lead is the distance the nut travels along the shaft during a single revolution. The smaller the lead, the tighter the thread. The lead can also be expressed as the pitch, which is the distance between adjacent thread crests or troughs. A lead screw has a smaller pitch than a nut, and the smaller the lead, the greater its linear speed.
When choosing lead screws, the critical speed is the maximum number of revolutions per minute. This is determined by the minor diameter of the shaft and its length. The critical speed should never be exceeded or the lead will become distorted or cracked. The recommended operational speed is around 80 percent of the evaluated critical speed. Moreover, the lead screw must be properly aligned to avoid excessive vibrations. In addition, the screw pitch must be within the design tolerance of the shaft.

Pitch

The pitch of a screw shaft can be viewed as the distance between the crest of a thread and the surface where the threads meet. In mathematics, the pitch is equivalent to the length of 1 wavelength. The pitch of a screw shaft also relates to the diameter of the threads. In the following, the pitch of a screw is explained. It is important to note that the pitch of a screw is not a metric measurement. In the following, we will define the 2 terms and discuss how they relate to 1 another.
A screw’s pitch is not the same in all countries. The United Kingdom, Canada, and the United States have standardized screw threads according to the UN system. Therefore, there is a need to specify the pitch of a screw shaft when a screw is being manufactured. The standardization of pitch and diameter has also reduced the cost of screw manufacturing. Nevertheless, screw threads are still expensive. The United Kingdom, Canada, and the United States have introduced a system for the calculation of screw pitch.
The pitch of a lead screw is the same as that of a lead screw. The diameter is 0.25 inches and the circumference is 0.79 inches. When calculating the mechanical advantage of a screw, divide the diameter by its pitch. The larger the pitch, the more threads the screw has, increasing its critical speed and stiffness. The pitch of a screw shaft is also proportional to the number of starts in the shaft.

Helix angle

The helix angle of a screw shaft is the angle formed between the circumference of the cylinder and its helix. Both of these angles must be equal to 90 degrees. The larger the lead angle, the smaller the helix angle. Some reference materials refer to angle B as the helix angle. However, the actual angle is derived from calculating the screw geometry. Read on for more information. Listed below are some of the differences between helix angles and lead angles.
High helix screws have a long lead. This length reduces the number of effective turns of the screw. Because of this, fine pitch screws are usually used for small movements. A typical example is a 16-mm x 5-inch screw. Another example of a fine pitch screw is a 12x2mm screw. It is used for small moves. This type of screw has a lower lead angle than a high-helix screw.
A screw’s helix angle refers to the relative angle of the flight of the helix to the plane of the screw axis. While screw helix angles are not often altered from the standard square pitch, they can have an effect on processing. Changing the helix angle is more common in two-stage screws, special mixing screws, and metering screws. When a screw is designed for this function, it should be able to handle the materials it is made of.
screwshaft

Size

The diameter of a screw is its diameter, measured from the head to the shaft. Screw diameters are standardized by the American Society of Mechanical Engineers. The diameters of screws range from 3/50 inches to 16 inches, and more recently, fractions of an inch have been added. However, shaft diameters may vary depending on the job, so it is important to know the right size for the job. The size chart below shows the common sizes for screws.
Screws are generally referred to by their gauge, which is the major diameter. Screws with a major diameter less than a quarter of an inch are usually labeled as #0 to #14 and larger screws are labeled as sizes in fractions of an inch. There are also decimal equivalents of each screw size. These measurements will help you choose the correct size for your project. The screws with the smaller diameters were not tested.
In the previous section, we described the different shaft sizes and their specifications. These screw sizes are usually indicated by fractions of an inch, followed by a number of threads per inch. For example, a ten-inch screw has a shaft size of 2” with a thread pitch of 1/4″, and it has a diameter of 2 inches. This screw is welded to a two-inch Sch. 40 pipe. Alternatively, it can be welded to a 9-inch O.A.L. pipe.
screwshaft

Shape

Screws come in a wide variety of sizes and shapes, from the size of a quarter to the diameter of a U.S. quarter. Screws’ main function is to hold objects together and to translate torque into linear force. The shape of a screw shaft, if it is round, is the primary characteristic used to define its use. The following chart shows how the screw shaft differs from a quarter:
The shape of a screw shaft is determined by 2 features: its major diameter, or distance from the outer edge of the thread on 1 side to the inner smooth surface of the shaft. These are generally 2 to 16 millimeters in diameter. Screw shafts can have either a fully threaded shank or a half-threaded shank, with the latter providing better stability. Regardless of whether the screw shaft is round or domed, it is important to understand the different characteristics of a screw before attempting to install it into a project.
The screw shaft’s diameter is also important to its application. The ball circle diameter refers to the distance between the center of 2 opposite balls in contact with the grooves. The root diameter, on the other hand, refers to the distance between the bottommost grooves of the screw shaft. These are the 2 main measurements that define the screw’s overall size. Pitch and nominal diameter are important measurements for a screw’s performance in a particular application.

Lubrication

In most cases, lubrication of a screw shaft is accomplished with grease. Grease is made up of mineral or synthetic oil, thickening agent, and additives. The thickening agent can be a variety of different substances, including lithium, bentonite, aluminum, and barium complexes. A common classification for lubricating grease is NLGI Grade. While this may not be necessary when specifying the type of grease to use for a particular application, it is a useful qualitative measure.
When selecting a lubricant for a screw shaft, the operating temperature and the speed of the shaft determine the type of oil to use. Too much oil can result in heat buildup, while too little can lead to excessive wear and friction. The proper lubrication of a screw shaft directly affects the temperature rise of a ball screw, and the life of the assembly. To ensure the proper lubrication, follow the guidelines below.
Ideally, a low lubrication level is appropriate for medium-sized feed stuff factories. High lubrication level is appropriate for larger feed stuff factories. However, in low-speed applications, the lubrication level should be sufficiently high to ensure that the screws run freely. This is the only way to reduce friction and ensure the longest life possible. Lubrication of screw shafts is an important consideration for any screw.

China Custom 45# Steel Linear Optical Shaft CZPT Chrome Plated Rod Piston Rod Soft Shaft Hard Shaft Generation Processing with high quality

China Best Sales Professional Manufacturer Chrome Plated Hardened Steel Shaft (WCS SFC series 3-150mm) with high quality

Product Description

Product Description
Linear Shaft is the guiding effect of sliding bearing, which can make the products of linear motion.
The necessary conditions required by the linear motion system is: Simple design, the best performance, low maintenance cost, using the selected durable material, high-frequency heat treatment, the accurate outside
Diameter size, roundness, really straight and surface treatment, etc.

Linear Shaft (Linear rod; Steel bar; Optical axis)
Product Name	Professional manufacturer Chrome plated Hardened steel Shaft (WCS SFC series 3-150mm)
Model No.	WCS SFC WC SF series 3mm, 4mm, 5mm, 6mm, 8mm, 10mm, 12mm, 13mm, 16mm, 20mm, 25mm, 30mm, 35mm, 40mm, 50mm, 60mm, 80mm, 100mm, 120mm, 150mm
Available Material	Carbon Steel, bearing steel
OEM & ODM	Yes
Hardened layer thickness	0.8mm-3mm
Length	0-6000mm (If you need above 6000mm, we can anti-connect for you)
Precision	G6
Roughness	Within 1.5μm
Straightness	Not excess 1.5μm of 100mm (Rmax)
Other Material	Bearing Steel GCr15, high Carbon Steel 45#, SUS440C
OEM & ODM	We are Professional bearing manufactory in China, the bearing of High Quality can be OEM & Customized according to your requirement, such as for thread shaft or not, Reduced shaft diameter, Coaxial Holes Drilled and Tapped, Flats-Single or Multiple, Key Way, Snap ring Grooves, Radial Holes Drilled and Tapped, Chamfering, etc.

JLD Linear Shaft Application:

1. Solid shaft
Generally applicable to industrial robots, as a professional measuring instruments, medical equipment, precision machine tools, aircraft shaft, pneumatic mandrel movement part.
2. Hollow shaft
With its weight to reduce equipment, simplify the structure of the advantages, you can then wear the internal measurement of wire, compressed air, can also add lubricants and hydraulic oil.
3. Stainless steel shaft
It’s generally suitable for use as a part of the measurement in the presence of chemicals such as chemicals, seawater and other
Substances.
Special machining shafts are finely finished after heat treatment with hard chrome plating for all types of automation equipment.

JLD Special Machining for Linear Shaft:
1. For the Length

We can offer linear shaft with diameterφ5mm-φ150mm. Maxium length up to 6000mm.

When you are special requirements on length, we can meet your machining requirements with different length.

When you request above 6000mm, we can anti-connect for you.

2. For Special Processing

When you have special requirements on machining. Such as threading, coaxial holes drilled and tapped, radial holes drilled and tapped, reduced shaft diameter etc, we can machine for you, and these special machines are finished after heat treatment and hard chromic so that ensure the precision of product.

Send us your detailed sketch or blue print for propmt quotation and action, you should be satisfied with our service.

About Us

HangZhou City CZPT Bearing Co., Ltd. is a professional manufacturer of linear motion products since 2007. We specialized in producing linear guides, ball screws, linear shafts, linear motion slide units, linear bearings, rod ends bearings, cam follower bearings/Needle roller bearing, precision linear module with good quality and competitive price. For OEM service, the products can be Customized according to customers’ needs for standard or non-standard bearings.

Our Services

Our Quality:
Quality is the life. We use only the best quality material to ensure the standard of our product range is of the highest caliber.
All products we sold out are strictly selected and tested by our QC department.
Warranty:
We provide 1 year warranty for all products.
Payment:
We accept payment via TT (Bank transfer), Paypal, Western Union, and Money Gram.
We accept bank transfer for large orders. For small order, you’d better pay via Paypal, Western union or Money Gram
Shipping:
We offer as many shipping options as possible, including DHL, UPS, TNT, FedEx and EMS, Airfreight and by Sea.

FAQ
1. Are you factory or trading company?
We are factory with most competitive price and high quality. We are Alibaba Gold Supplier seller since 2011.

2. Customized accepted?
Yes, of course, such as the bearing brand of Japanese, USA, Sweden and so on are available. If that, please send us the drawing of the type with the picture will be most appreciated.

3. Can I get some samples or more discounts?
Yes, just to contact us and we are honored to offer samples to you for checking.

4. How about the time of delivery?
For the products in stock, it will be sent out in 1-3 days; Or it will be sent out 3-30 days according to the quantity.

5. What’s your products main line?
Since 2007, we specialized in producing all kinds of linear shaft, linear bearing, flange bearing, ball screw, linear CZPT way, linear motion ball bearing, needle roller bearing, etc.

6. How can I get a quotation?
Normally, we will quote within 24 hours. If you are in urgent, please give a call or let us know in your email with the details.
We need information bellow:
1. The Model Number/ the detail drawing of non-standard bearing;
2. Quantity;
3. Material;
4. Surface treatment;
5. Any special packing or other requirements.

Screw Shaft Types

A screw shaft is a cylindrical part that turns. Depending on its size, it is able to drive many different types of devices. The following information outlines the different types of screws, including their sizes, material, function, and applications. To help you select the right screw shaft, consider the following factors:
screwshaft

Size

A screw can come in a variety of shapes and sizes, ranging from a quarter to a quarter-inch in diameter. A screw is a cylindrical shaft with an inclined plane wrapped around it, and its main function is to fasten objects together by translating torque into a linear force. This article will discuss the dimensions of screws and how to determine the size of a screw. It is important to note that screw sizes can be large and small depending on the purpose.
The diameter of a screw is the diameter of its shaft, and it must match the inner diameter of its nuts and washers. Screws of a certain diameter are also called machine screws, and they can be larger or smaller. Screw diameters are measured on the shaft underneath the screw head. The American Society of Mechanical Engineers (ASME) standardized screw diameters in 3/50-inch to 16 (3/8-inch) inches, and more recently, sizes were added in U.S. fractions of an inch. While shaft and head diameters are standardized, screw length may vary from job to job.
In the case of the 2.3-mm screw group, the construct strength was not improved by the 1.2-mm group. The smaller screw size did not increase the strength of the construct. Further, ABS material did not improve the construct strength. Thus, the size of screw shaft is an important consideration in model design. And remember that the more complex your model is, the larger it will be. A screw of a given size will have a similar failure rate as a screw of a different diameter.
Although different screw sizes are widely used, the differences in screw size were not statistically significant. Although there are some limitations, screws of different sizes are generally sufficient for fixation of a metacarpal shaft fracture. However, further clinical studies are needed to compare screw sizes for fracture union rates. So, if you are unsure of what size of screw shaft you need for your case, make sure to check the metric chart and ensure you use the right one.
screwshaft

Material

The material of a screw shaft plays an important role in the overall performance of a screw. Axial and central forces act to apply torque to the screw, while external forces, such as friction, exert a bending moment. The torsional moments are reflected in the torque, and this causes the screw to rotate at a higher rate than necessary. To ensure the longevity of the screw, the material of the screw shaft should be able to handle the bending moment, while the diameter of the shaft should be small enough to avoid causing damage.
Screws are made from different metals, such as steel, brass, titanium, and bronze. Manufacturers often apply a top coating of chromium, brass, or zinc to improve corrosion resistance. Screws made of aluminum are not durable and are prone to rusting due to exposure to weather conditions. The majority of screw shafts are self-locking. They are suited for many applications, including threaded fasteners, C-clamps, and vises.
Screws that are fabricated with conical sections typically feature reduced open cross-sectional areas at the discharge point. This is a key design parameter of conical screw shafts. In fact, reductions of up to 72% are common across a variety of applications. If the screw is designed to have a hard-iron hanger bearing, it must be hardened. If the screw shaft is not hardened, it will require an additional lubricant.
Another consideration is the threads. Screw shafts are typically made of high-precision threads and ridges. These are manufactured on lathes and CNC machines. Different shapes require different materials. Materials for the screw shaft vary. There are many different sizes and shapes available, and each 1 has its own application. In addition to helical and conical screw shafts, different materials are also available. When choosing material, the best 1 depends on the application.
The life of the screw depends on its size, load, and design. In general, the material of the screw shaft, nut body, and balls and rollers determine its fatigue life. This affects the overall life of the screw. To determine whether a specific screw has a longer or shorter life, the manufacturer must consider these factors, as well as the application requirements. The material should be clean and free of imperfections. It should be smooth and free of cracks or flaking, which may result in premature failure.

Function

The function of a screw shaft is to facilitate the rotation of a screw. Screws have several thread forms, including single-start, double-start and multi-start. Each form has its own advantages and disadvantages. In this article we’ll explore each of them in detail. The function of a screw shaft can vary based on its design, but the following are common types. Here are some examples of screw shaft types and their purposes.
The screw’s torque enables it to lift objects. It can be used in conjunction with a bolt and nut to lift a load. Screws are also used to secure objects together. You can use them in screw presses, vises, and screw jacks. But their primary function is to hold objects together. Listed below are some of their main functions. When used to lift heavy loads, they can provide the required force to secure an object.
Screws can be classified into 2 types: square and round. Square threads are more efficient than round ones because they apply 0deg of angle to the nut. Square threads are also stronger than round threads and are often used in high-load applications. They’re generally cheaper to manufacture and are more difficult to break. And unlike square threads, which have a 0deg thread angle, these threads can’t be broken easily with a screwdriver.
A screw’s head is made of a series of spiral-like structures that extend from a cylindrical part to a tip. This portion of the screw is called the shank and is made of the smallest area. The shank is the portion that applies more force to the object. As the shaft extends from the head, it becomes thinner and narrow, forming a pointed tip. The head is the most important part of the screw, so it needs to be strong to perform its function.
The diameter of the screw shaft is measured in millimeters. The M8 screw has a thread pitch of 1.25 mm. Generally, the size of the screw shaft is indicated by the major and minor diameter. These dimensions are appended with a multiplication sign (M8x1).
screwshaft

Applications

The design of screws, including their size and shape, determines their critical rotating speeds. These speeds depend on the threaded part of the screw, the helix angle, and the geometry of the contact surfaces. When applied to a screw, these limits are referred to as “permissible speed limits.” These maximum speeds are meant for short periods of time and optimized running conditions. Continuous operation at these speeds can reduce the calculated life of a nut mechanism.
The main materials used to manufacture screws and screw shafts include steel, stainless steel, titanium, bronze, and brass. Screws may be coated for corrosion resistance, or they may be made of aluminium. Some materials can be threaded, including Teflon and nylon. Screw threads can even be molded into glass or porcelain. For the most part, steel and stainless steel are the most common materials for screw shafts. Depending on the purpose, a screw will be made of a material that is suitable for the application.
In addition to being used in fasteners, screw shafts are used in micrometers, drillers, conveyor belts, and helicopter blades. There are numerous applications of screw shafts, from weighing scales to measuring lengths. If you’re in the market for a screw, make sure to check out these applications. You’ll be happy you did! They can help you get the job done faster. So, don’t delay your next project.
If you’re interested in learning about screw sizing, then it’s important to know the axial and moment loads that your screws will experience. By following the laws of mechanics and knowing the load you can calculate the nominal life of your screw. You can also consider the effect of misalignment, uneven loading, and shocks on your screw. These will all affect the life of your screw. Then, you can select the right screw.

China Best Sales Professional Manufacturer Chrome Plated Hardened Steel Shaft (WCS SFC series 3-150mm) with high quality

China Best Sales Ck45 Steel Hard Chrome Plated Bar and Round Rod for Transmission Shaft with high quality

Product Description

PRODUCT PARAMETERS

ITEM: hard chrome plated rod (induction or without)

MATERIAL: CK45/1045/S45C/SS304/other

SURFACEHARDNESS: HRC18-20/HRC58-60

CHROME LAYER THICKNESS: 15μm ~ 25μm

CHROME LAYER HARDNESS: above HV800

AXIS STRAIGHTNESS: 0.15mm /1000mm

ROUGHNESS: Ra 0.2μm~0.4μm

PRECISION: H7

PRODUCTION PROCESS

CAPABILITY

OTHER PRODUCTS

HONE TUBE & DRAWINGS CUSTOM-MADE

PACKING

COMPANY OVERVIEW

HangZhou CZPT PRECISION MACHINERY CO., LTD. ESTABLISHED IN 2009, IT IS A PROFESSIONAL SUPPLIER OF HYDRAULIC CHROME PLATED PISTON RODS ,INDUCTON LINEAR SHAFT, LINEAR MOTION BEARING ,LINEAR XIHU (WEST LAKE) DIS., LINEAR MODULE AND BALL SCREW ETC. OUR COMPANY LOCATED IN HangZhou, WHICH IS A FOREIGN TRADE ORIENTED ECONOMIC DEVELOPED CITY, ADJACENT TO INTERNATIONAL PORT CITY ZheJiang .

APPLICATIONS

HYDRAULIC CYLINDERS
TRUCK AND AUTOMOTIVE PARTS
HEAVY EQUIPMENT
AGRICULTURAL COMPONENTS
AUTO AND TRUCK AXLES, SUSPENSION PARTS AND SHOCK ABSORBERS
HIGH SPEED SHAFTS AND ROLLERS
BEARINGS AND SPACERS, ROLL CAGES, AND MANY OTHER MACHINED TUBULAR PARTS.

IF YOU ARE INTERESTED IN OUR COMPANY, PLEASE FEEL FREE TO CONTACT US:

HangZhou CZPT PRECISION MACHINERY CO., LTD
ADD: NO.217 CZPT BUILDING, NO.668 FENGTING STREET, HangZhou INDUSTRIAL PARK P.R.C

http://chromedbars
http://chromedbars

The Four Basic Components of a Screw Shaft

Thread angle

Head

Threaded shank

Point

Spacer

Nut

China Best Sales Ck45 Steel Hard Chrome Plated Bar and Round Rod for Transmission Shaft with high quality

China Good quality China Shaft Factory/Round Solid Hard Chrome Plated Linear Transmission Motion Rod/Hardened Steel Bearing Shaft(OD 3 4 5 6 8 10 12 16 20 25 30 40 50 60 80 100mm) with high quality

Product Description

Features

Model Number	WCS SFC Series Solid shaft(Linear rod;Steel bar;Optical axis)
Diameter of Linear Shaft	Metric Diameter : 3mm,4mm,5mm,6mm,8mm,10mm,12mm,16mm, 20mm, 25mm, 30mm, 35mm,40mm, 50mm,60mm,80mm,100mm Inch Diameter : 6.35mm,9.525mm,12.7mm,15.875,19.05,25.4mm,31.75mm,38.1mm
Material	Steel 45#;GCR15;
Hardness	HRC:58-62
Hardened Layer Thickness	0.8-3.00mm
Precision	G6
Roughness	Within1.5μm
Roundness	Within 3.0μm(Rmax)
Straightness	Not excess 1.5μm of 100mm (Rmax)
Thickness of Chrome Plated	10-20μm,15μm on average
Service	Specisl requirement onmachining,such as threading,coaxial holes drilled and tapped,radial holes drilled and tapped,reduced shaft diameter etc;We could supply OEM to our customers.
Application	3d printer machine,Machine centers,Machine tools,Precision machining machines,Heavy cutting machines,Punching machines,Marble cutting machines,Automatic equipments,Grinding machines,High speed transfer equipments,Injection molding machines,Measuring equipments

Product Parameters

Detailed Photos

JLD Special Machining for Linear Shaft:

1. For the Length

We can offer linear shaft with diameterφ3mm-φ100mm. Maxium length up to 6000mm.

When you are special requirements on length, we can meet your machining requirements with different length.

When you request above 6000mm, we can anti-connect for you.

2. For Special Processing

Company Profile

After Sales Service

Our Quality:

FAQ

1. Are you factory or trading company?

We are professional manufacturer with most competitive price and high quality, 15 year’s experience.

2.What’s your product range?
We are specialized in producing linear shafts, linear bearings, linear guides, linear rails, ball screws,cam follower and other linear motion units.

3.Do you offer OEM&ODM services?
Yes, OEM, ODM is welcomed

4.How Can I get some samples?
We are honored to offer samples. You are requested to pay the shipping cost and some samples cost.

5.What does your factory do about quality control?
We uphold the tenet of “Quality is the future, we have passed ISO9001 certification, and we have strict procedures to control quality.

6. How can I get a quotation?
You can send quotation below or email to us. you can contact dirrectly with us through TM or WhatsApp,Skype as you like.Call any time if you are urgent.

Lead Screws and Clamp Style Collars

Acme thread

Lead screw coatings

Clamp style collars

Ball screw nut

China Good quality China Shaft Factory/Round Solid Hard Chrome Plated Linear Transmission Motion Rod/Hardened Steel Bearing Shaft(OD 3 4 5 6 8 10 12 16 20 25 30 40 50 60 80 100mm) with high quality

Product Description

Types of Screw Shafts

Machined screw shaft

Acme screw

Lead screw

Fully threaded screw

Ball screw

Product Description

The Four Basic Components of a Screw Shaft

Thread angle

Head

Threaded shank

Point

Spacer

Nut

Product Description

Lead Screws and Clamp Style Collars

Acme thread

Lead screw coatings

Clamp style collars

Ball screw nut

Product Description

Lead Screws and Clamp Style Collars

Acme thread

Lead screw coatings

Clamp style collars

Ball screw nut

Product Description

Types of Screw Shafts

Machined screw shaft

Acme screw

Lead screw

Fully threaded screw

Ball screw

Product Description

Types of Screw Shafts

Machined screw shaft

Acme screw

Lead screw

Fully threaded screw

Ball screw

Product Description

Screw Shaft Features Explained

Threads

Lead

Pitch

Helix angle

Size

Shape

Lubrication

Product Description

Professional manufacturer Chrome plated Hardened steel Shaft (WCS SFC series 3-150mm)

Screw Shaft Types

Size

Material

Function

Applications

Product Description

The Four Basic Components of a Screw Shaft

Thread angle

Head

Threaded shank

Point

Spacer

Nut

Product Description

Lead Screws and Clamp Style Collars

Acme thread

Lead screw coatings

Clamp style collars

Ball screw nut