Solution and removal measures for bearing faults

Troubleshooting: Remove and replace the front bearing and lubricating grease, adjust the bearing clearance, with a shaft diameter clearance of 0.003mm and an axial clearance of 0.002mm; Self made simple grinding tools, manually grinding the precise positioning surface of the bearing inner cone hole, using the color coating method to check, ensuring that the total contact area between the tool handle and the bearing cone hole exceeds 85%; Remove and replace the butterfly spring. Reinstall the repaired bearing into the bearing box and use a micrometer to check for axial vibration. The near end is less than 0.006mm, and the far end is less than 0.010Mm at 150mm. During the trial production process, the temperature rise and noise of the bearings were normal, and the machining accuracy was determined by the production process, with troubleshooting.

Rectification measures:

① Improve the air compression precision filtration and drying device, and ensure that the filtration device drains the pipeline on time, and clean or replace the filter element on time;

② Check the cleaning and mutual fit of the bearing cone hole and tool handle anytime and anywhere, and check if everything is normal during the operation of the air dryer;

③ Scientifically arrange production processes to prevent sharp changes in the cutting rate of raw materials;

④ Overload operation is prohibited. If there is a fault, it should be reported immediately and operation with a fault is not allowed.