Bearing dimensional accuracy
1. Bearing inner diameter.
2. Bearing outer diameter.
3. Inner ring width.
4. Outer ring width.
Rated life:
For the same group of bearings, the total number of rotations that 90% of the bearings can rotate before material damage due to rotation fatigue is the basic rated life.
Basic rated live load
Basic rated live load refers to the load that can reach the basic rated life of 1 million times and is applied to the bearing in a certain direction and size.
Internal clearance
Clearance can be divided into radial clearance, axial clearance and angular clearance.
coordination
When using ball bearings, they are not used alone. They must be transferred to the shaft or embedded in the casing and support. Fit refers to the tightness of the assembly and fitting between the shaft and the inner ring, the casing and the outer ring.
Bearing fit is divided into clearance, interference and transition fit.
