The micro vibration wear
Damage state: the wear caused by the relatively repeated and slight sliding between the two contact surfaces is generated in the contact part of the raceway surface and the rolling body. Due to the occurrence of reddish-brown and black wear powder, it is also known as fretting corrosion.
Reason: poor lubrication. Small amplitude swing motion. A surplus is insufficient.
Measure: use appropriate lubricant. Preloading. Check the volume. Lubricate the mating surface.
Electric erosion
Damage status: electric erosion refers to the current loop turn heavy wheel bearing raceway and rolling element contact part of the flow, by sparks were emitted from thin lubricant film, its surface appear partial melting and bump phenomenon.
Reason: the potential difference between the outer ring and inner ring.
Measure: when setting the circuit, the current will not flow through the bearing part. The bearings are insulated.
Rust, corrosion
Damage status: rust and corrosion of bearing, rust, rust and corrosion of rolling surface.
Reason: the invasion of water and corrosive substances. The lubricant is not suitable. Water droplets are attached to the condensation of water vapour. Stop when high temperature is wet. The transportation process is badly rustproof. Improper storage condition. Improper use.
Measure: improve the sealing device. Study lubrication methods. Anti-rust measures during the suspension. Improved storage methods. Pay attention when you use it.
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