Bearing accuracy refers to the size of the processing error in bearing manufacturing, which is mainly affected by the following factors:

1. Processing methods and equipment: The processing method, equipment accuracy and process level of the bearing will directly affect the accuracy of the bearing. Advanced processing equipment and technology can reduce processing errors and improve the accuracy of the bearing.

2. Material quality: The quality of the bearing material, including its uniformity, hardness and wear resistance, also has an important impact on the accuracy of the bearing. High-quality materials can ensure that the bearing maintains stable accuracy during operation.

3. Heat treatment process: The heat treatment process plays an important role in eliminating internal stress of the material and improving hardness and wear resistance. Appropriate heat treatment process can optimize the performance of the bearing and improve its accuracy.

4. Assembly and adjustment: The assembly and adjustment process of the bearing will also affect its accuracy. Correct assembly methods and adjustment parameters can ensure that the bearing runs smoothly in the system and reduce errors.

5. Use environment and maintenance: During the use of the bearing, it is affected by factors such as the working environment, lubrication conditions, and load, which may cause the bearing accuracy to decrease. In addition, regular maintenance and care are also important measures to maintain bearing accuracy.

There are many factors that affect bearing accuracy, which need to be controlled and optimized in various aspects such as design, manufacturing, use and maintenance. For more information on bearing accuracy, it is recommended to consult professional mechanical books or consult experts in the field of bearing manufacturing.