The abnormal sounds appearing during the operation of the crossed roller bearings are various, the formation mechanism is more complicated, the factors are multi-faceted, and various abnormal sounds are often superimposed and difficult to distinguish. Based on years of production experience, the main reasons are as follows:
There are periodic vibration pulses caused by flaws, scratches or serious defects in the inner and outer raceways of the bearing.
2. Non-periodic vibration pulses caused by defects such as bumps and scratches on the surface of the rolling elements.
3. Periodic or aperiodic vibration pulses caused by the presence of residual magnetic adsorption of iron powder on the raceways or rolling elements.
4. Pulses of non-periodic vibration caused by impurities or dust entering the bearing raceway. The assembly must be done in a high clean room.
5. A non-periodic vibration pulse caused by a violent collision between the rolling element and the isolation block.
6. Poor lubricant performance, sliding friction between the rolling element and the spacer block, and vibration pulses generated by the rolling lubricant when the rolling element is running. Cross roller bearings are greased to ensure their use in precision environments.
