| 摘要 |
PURPOSE: A constant velocity joint of a vehicle is provided to prevent overheating by supplying grease through plural passages formed around the inner race actively, and to lubricate actively by preventing degradation. CONSTITUTION: A ball cage(40) is assembled with an outer race(20), and plural balls(30) are arranged in the ball cage. An inner race(50) is combined with the ball cage and a driving shaft. Plural ball grooves are formed radially around the inner race, and plural passages(52) are formed axially in the outer periphery of the inner race. The lower part of the ball is inserted to the ball groove. Grease is circulated through passages for cooling heat from the outer race and the inner race and for lubricating. A constant velocity joint is turned with keeping the constant angle between the inner race and the outer race. Overheat is prevented, and lubricating is performed actively with supplying grease through plural passages around the inner race.
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