Your Professional Linear Rails Supplier
Xuxin Automation Co., Ltd. is a key subsidiary of Feihong Technology Automation Co., Ltd. Leveraging our parent company’s robust industrial resources and manufacturing expertise, we specialize in the R&D and production of core precision transmission components, including ball screws, linear bearings, and precision nuts.
As a National High-Tech Enterprise, Xuxin Automation operates a 13,000-square-meter modern production base.
With a professional team of over 100 experts and in-house R&D capabilities, we achieve an annual output value of 50M+ RMB.
Our facility is equipped with over 100 sets of advanced machinery, including 80+ CNC machine tools, precision grinding machines, and machining centers.
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![8mm Linear Rail]()
8mm Linear RailThe EGH15SA 8mm linear rail is a low-profile square-type linear guide rail, featuring a top-lock installation design and a four-row steel ball load structure.read more -
![Precision Linear Rails]()
Precision Linear RailsThe EGH25SA precision linear rails are linear motion components with a low-assembly design. They use the rolling guide principle to achieve smooth, low-noise movement and feature a four-row ballread more -
![20mm Linear Guide Rail]()
20mm Linear Guide RailThe EGH35SA 20mm linear guide rail is a low-assembly ball-type linear guide rail, designed with four rows of steel balls to bear loads, offering both high rigidity and high load-bearing capacity.read more
Linear Rails
Linear rails, also referred to as linear guideways, are integral components of linear motion systems, working together with linear guides to facilitate smooth and precise movement.
These rails are primarily crafted from durable materials such as steel or stainless steel, ensuring robustness and reliability in demanding operating environments.
Unlike traditional linear bearings, which rely on direct contact between ball bearings and the linear shaft, linear rails feature a unique design that enables ball bearings to make contact with the linear rails at a 45° angle.
|
Precision Grade |
General Grade |
High Grade |
Precision Grade (P) |
Super High Grade |
Top Grade |
|
Project |
|||||
|
Combined high tolerance(H) |
±0.1 |
±0.04 |
0-0.04 |
0-0.02 |
0-0.01 |
|
Combination width tolerance(W) |
±0.1 |
±0.04 |
0-0.04 |
0-0.02 |
0-0.01 |
|
Single shaft pairs High tolerance (△H) |
0.03 |
0.02 |
0.01 |
0.005 |
0.003 |
|
Single shaft pairs Wide tolerance (△W) |
0.03 |
0.02 |
0.01 |
0.005 |
0.003 |
|
The walking accuracy of plane C relative to plane A |
△C |
||||
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The walking accuracy of plane D relative to plane B |
△D |
||||
Linear Guide Characteristics
Light movement with no clearance
As linear guides are rolling guides, they have no clearance and lighter movements than sliding guides.
Infinite linear motion is possible
Rolling guides such as cross-roller guides and ball guides have finite strokes, but the linear guide’s balls recirculate endlessly, which means that the stroke can extend to however long the rail is made.
High permissible load
The linear guide’s raceways are curved grooves, which provide surface contact between the balls and raceways. This makes the permissible load about 13 times greater than that of guide components with point contact, such as the linear bushing. As a result, a linear guide can achieve a similar permissible load as a point-contact type through a more compact design.
Load ratings
Linear rails are designed to resist multiple kinds of radial loads, which are forces perpendicular to the direction of movement:
Static load (C0) is the maximum load before the bearings or raceways are permanently deformed.
Dynamic load (C) is the maximum continuous load applied to the bearings and raceways that doesn’t compromise the service life of the rails beyond the nominal rating (which is 50km for MGN/HG rails and other ball-type rails).
Moment load is a load that can cause a rotation of the bearing around one of three axes: pitch (front/back tilt), yaw (sideways rotation), and roll (rotation around the axis of motion).
FAQ
We are one of the most experienced linear rails manufacturers and suppliers in China. Please rest assured to wholesale high quality linear rails for sale here from our factory. If you have any enquiry about customized service, please feel free to email us.
8mm linear bearing, linear rails, Precision Linear Rails