Indentation - bearing knowledge

Damage status: bite into a tiny metal powder, foreign bodies, such as on the raceway surface or rotating the dent. Due to impact, such as installation on the roller spacing interval to form the concave ( Brinell hardness indentation) 。 Reason: 1. The metal powder and other foreign body nip. 2. Assembly or transport process under impact load is too big. Steps: 1. Shock collar. 2. Improve the sealing device. 3. Filter the lubricating oil. 4. Improve assembly and method of use.