Constant velocity joint and manufacturing method therefor
AssigneeHonda Motor Co., Ltd.
InventorMitsuru Kamikawa
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Abstract
A first constant velocity joint is equipped with a cup part made of a light alloy. First ball grooves that receive a torque from torque transmitting members are formed on an inner wall of the cup part. A high hardness layer made of ceramic or cermet as a principal component thereof is formed on an inner surface of the cup part including at least inner surfaces of the first ball grooves.
Claims10
A constant velocity joint comprising an outer member including a cup part, an inner member inserted into the outer member, and a torque transmitting member configured to carry out transmission of torque and interposed between the outer member and the inner member;
- wherein the cup part is made of a light alloy, including a groove formed on an inner wall of the cup part, the groove receives the torque from the torque transmitting member, and the cup part further comprises a high hardness layer made of ceramic or cermet as a principal component thereof on an inner surface of the cup part including at least an inner surface of the groove.
A manufacturing method for a constant velocity joint comprising an outer member including a cup part, an inner member inserted into the outer member, and a torque transmitting member configured to carry out transmission of torque and interposed between the outer member and the inner member, the manufacturing method comprising:
- a high hardness layer forming step of forming a groove that receives the torque from the torque transmitting member on an inner wall of the cup part made of a light alloy, and forming a high hardness layer made of ceramic or cermet as a principal component thereof on an inner surface of the cup part including at least an inner surface of the groove.
Dependencies are inferred from the claim text.