| 摘要 |
A constant velocity joint has outer and inner joint members formed with aligned ball grooves. A torque-transmitting ball is contained in each set of grooves and is captured within windows of a cage disposed between the joint members. The radial groove profile provides a large operating joint angle but with a relatively low Rx ratio. At zero joint angle the balls are positioned in a ball center plane and define a ball center radius (BCR) in the ball center plane. As the joint angulates, the balls roll on the grooves and, while maintained in a ball plane, are displaced radially relative to the ball center radius (BCR). Rx=BCR/x, which is the ball displacement. The groove profile includes a straight section coupled with a double arc or polynomial curved section which attains high joint angle at a relatively low Rx ratio.
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