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Requirements for precision bearings

1. Since the precision of the precision bearing itself is within 1 μ  This requirement requires that the matching parts (shaft, bearing seat, end cover, retaining ring, etc.) have high dimensional accuracy and shape accuracy, especially the accuracy of the mating surface should be controlled within the same level as the bearing, which is very important and easy to be ignored.
2. It must also be noted that if the matching parts of the precision bearing fail to meet the above requirements, the precision bearing will often have errors several times or even more than 10 times larger than the original bearing error after installation, which can not be regarded as a precision bearing at all. The reason is that the errors of the matching parts are often not simply added to the errors of the bearing, but added after amplification by different times.

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