differential bearing cup的用法和样例：
- Improper adjustment of differential bearings.
- During the maintenance and repair, it is generally necessary to adjust the left/right position of a driven gear and the pretension grade of the differential bearing.
- Remove the depth shims from rear pinion bearing cup bore in axle housinRecord the thickness of the depth shims.
- differential bearing adjustinng nut
- bearing cup with ball bearings in ball race