Try to compare the similarities and differences between angular contact ball bearings and tapered roller bearings.

Answer: * * * Similarities: It can bear radial load and unidirectional axial load at the same time, and can be used in pairs.

Difference: angular contact ball bearing has smaller bearing capacity, higher limit speed, larger allowable angle deviation and lower price. Tapered roller bearings have large bearing capacity, low limit speed, small allowable angle deviation, separable inner and outer rings and high price.