| 摘要 |
PROBLEM TO BE SOLVED: To provide a constant velocity universal joint including an inexpensive seal structure facilitating to secure stable sealing performance and enabling cost reduction.SOLUTION: In the constant velocity universal joint including an outer joint member 13 formed with track grooves 11 extending in the axial direction in a plurality of locations of the inner peripheral surface 12, an inner joint member 16 formed with track grooves 14 extending in the axial direction in a plurality of locations of the outer peripheral surface 15 and forming a pair with the track grooves 11 of the outer joint member 13, and balls 17 interposed between the track grooves 11 of the outer joint member 13 and the track grooves 14 of the inner joint member 16, with a sleeve 31 being externally fit to a shaft 19 extending from the inner joint member 16 by spline fitting so as to transmit torque and so as to be axially slidable, a cylindrical cover 36 made of a synthetic resin sealing the spline fitting section of the shaft 19 and the sleeve 31 is arranged between the shaft 19 and the sleeve 31. |
