| 摘要 |
PURPOSE: A wear-proof clutch is provided to suppress wear caused by the speed difference of two friction surfaces by contacting a clutch disc and a flywheel when the clutch disc and the flywheel rotate at a same speed by synchronizing the speed thereof before the clutch disc and the flywheel directly contact each other. CONSTITUTION: In a clutch comprising a flywheel(70) directly connected to a crankshaft of an engine and rotated and a clutch disc(60) spline-combined to an input shaft(80) of a transmission and rotated with being pressed to the flywheel, a wear-proof clutch is composed of a synchronizer synchronizing the rotational speed between the flywheel and the clutch disc before the flywheel and the clutch disc directly contact each other and generate friction force. In additional, a ball set(50) of the synchronizer for rolling-contacting with other side is installed to at least one of the flywheel or the clutch disc and a synchronizer groove(60') for combining the ball set in an instant is formed to be twice as many as the ball set.
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