| 摘要 |
PROBLEM TO BE SOLVED: To enhance the sliding performance of a spline hub by installing a device to supply lubricant to the slide parts of the spline hub on the peripheral surface of the spline hub. SOLUTION: A spline hub assembly is equipped with a boss 11 fitted on an output member for transmitting the torque and a resin vessel 10 attached to the peripheral surface of the boss 11. The resin vessel 10 is filled with a lubricant, is located abutting to a friction plate 6b and hub flange 7, and is heated by the friction heat generated from the two members. The molten lubricant is fed to spline groove 13 via hole provided at the inside circumferential surface of the vessel, a through hole formed in the boss 11, and a grease groove 14 provided at the inside circumferential surface of the boss.
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