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What are the effects of reduced accuracy of different types of miniature guideways?

Date: 2025.07.10   Views: 10

Miniature guide rail is a high-precision, small volume, lightweight linear motion guide system, widely used in a variety of fields that require precision linear motion. Its accuracy level is an important indicator of its performance, different accuracy levels of the guide for different application scenarios. 


So, what is the difference between different types of miniature guide rail precision to reduce its speed?


Ball type miniature guide rail

Since there is a point contact between the ball and the guide rail, the contact stress is relatively concentrated under the same load. If the dust and impurities in the use of the environment is more, the ball is easy to wear and tear, which in turn affects the accuracy of the guideway. In some semiconductor manufacturing equipment that requires very high accuracy, if the environment in which the ball type miniature guideway is located is poor and the lubrication system is faulty, there may be a detectable decrease in accuracy in a relatively short period of time. However, in a clean, well-lubricated environment, its accuracy is better maintained, accuracy degradation is slower, can run for tens of thousands of hours accuracy can still be maintained at a high level.



Roller type miniature guide rail

Roller type miniature guide rail is suitable for high rigidity and heavy load scenarios, the roller and the guide rail are in line contact, compared with the ball type, it has a stronger load carrying capacity, and the deformation of the roller is relatively small when it is subjected to large loads. Under heavy load conditions, the accuracy of roller type miniature guideway decreases slower than ball type.


In general, different types of miniature guide rail accuracy reduction speed difference is mainly reflected in the high-precision guide rail in good lubrication and maintenance conditions, the slowest decline in accuracy. And common class guide in high load or poor environment, the fastest decline in accuracy. In addition, the operating speed and the use of the environment also has a significant impact on the speed of precision degradation, high-speed operation and poor environment will accelerate the precision degradation.





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