Constant velocity fixed joint for torque transmission between drive shaft and output shaft, has joint outer part, joint inner part, retainer and multiple balls

摘要

The constant velocity fixed joint (1) has a joint outer part (2), a joint inner part (3), a retainer (4) and multiple balls (5). The retainer is arranged between the joint outer part and the joint inner part. The joint outer part has an inner circumferential surface (10). The inner circumferential surface of the joint outer part or an outer circumference surface (12) of the joint inner part is hardened. An independent claim is also included for a method for manufacturing a constant velocity fixed joint.