| 摘要 |
PROBLEM TO BE SOLVED: To provide a lightweight constant velocity joint capable of dispensing with grease lubrication. SOLUTION: A trunnion member 11 is installed into an outer ring 1 having a hollow hole surrounded by six flat faces 2 being parallel with the axis, and three first spherical faces 12a coming into contact with the outer periphery of the trunnion member 11 at positions deviated on one side in the circumferential direction from a central position in the circumferential direction of the flat face 2 and three second spherical faces 12b coming into contact with the outer periphery of it at positions deviated on the other side from the central position are alternately formed in the peripheral direction. Each of the outer ring 1 and the trunnion member 11 is formed as a molded product made of synthetic resin to dispense with grease lubrication and reduce weight of the constant velocity joint. Base resin of synthetic resin for molding the outer ring is different from base resin of synthetic resin for molding the trunnion member to prevent adhesion of the outer ring 1 and the trunnion member 11 in a slide-contact part and suppress reduction of constant velocity property due to wear. COPYRIGHT: (C)2007,JPO&INPIT
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