Patent ID: 8128504
Filing Date: 2012-03-06
Classification: F16D,Y10S,Y10T

Abstract:
1. A constant velocity universal joint comprising: an outer joint component; an inner joint component having an axis hole; and a shaft pressed into the axis hole of the inner joint component, wherein an inner surface of the inner joint component around the axis hole is unhardened, wherein a recess and projection section extending along a circumferential direction is formed on an axial end of the shaft and a hardened layer is formed on a radially outward portion of the axial end of the shaft, wherein the shaft has a solid core at the recess and projection section, wherein the axial end of the shaft is press-fitted into the axis hole of the inner joint component such that the recess and projection section is wedged into the inner surface of the axis hole of the inner joint component by which the inner surface is plastically deformed and a plastic coupling of the shaft and the inner joint component is completed.