Types of ball bearings is recommended when the harmony shaft and housing is difficult and the shaft can Flex. The outer ring features raceway a ball and center of the arch coincided with that of the bearing; Therefore, the axis of the ring in, balls and cage can fend off to some extent around the Centre of the bearing. steel cage press is usually used. Due to the small contact angle, axial load capacity is low. The dynamic permissible misalignment is about 0.07-0.12 radians (4 to