Maintenance-free bearing process performance analysis

After cleaning the inner and outer ring sections and steel balls of the maintenance-free bearing, it can be found that fine radial imprints are found on the inner and outer raceway ribs, and some areas are "blue" due to oxidation. This further proves that maintenance-free bearings have experienced very high temperatures. After cleaning the surface of the maintenance-free bearing raceway with cold acid, we can clearly see that the inner and outer raceways have been seriously damaged and have radial patterns, concentrated on the sides of the section, while the center of the section is not obvious. , indicating that the axial force experienced by maintenance-free bearings is relatively large. For double groove ball maintenance-free bearings, the axial force they can bear is relatively small, which is much smaller than the axial force that double-row angular contact maintenance-free bearings can bear. It can be clearly seen that the surface of the maintenance-free bearing steel balls is seriously scratched. Among them, the surface of the maintenance-free bearing steel balls of three sets of maintenance-free bearings is red, indicating that these three sets of maintenance-free bearings have experienced very high temperature environments.

Maintenance-free bearing anti-rust treatment method

1) Surface cleaning: Cleaning must be carried out in an appropriate method according to the characteristics of the surface of the object to be rust-proofed and the conditions at that time. Generally, there are organic solvent cleaning methods, organic chemical solution cleaning methods and mechanical equipment cleaning methods.

2) The surface should be dry and clean. It can be compressed and dried with excessive dry air, or dried with a 120-170c air dryer. It can also be cleaned with clean gauze.