Patent ID: 6427817
Filing Date: 2002-08-06
Classification: F16D

Abstract:
In combination,an electromagnetic clutch including a solenoid coil, a coil housing disposed surrounding the solenoid coil, an armature plate disposed facing a side of the coil housing, and a clutch mechanism, wherein current flowing to the solenoid coil is controlled so as to control clamping of the armature plate to the coil housing, and the clamping force acting on the armature plate is used to control engagement of the clutch mechanism, and a lubricating structure comprising: a lubricating oil supply channel for supplying lubricating oil from inside in the radial direction into a gap between the coil housing and the armature plate, and an oil reservoir holding lubricating oil to be supplied into the gap around an inner periphery of a region where the coil housing faces the armature plate; and an oil fence ring mounted around an inner peripheral surface of the armature plate; wherein the lubricating oil supplied from the lubricating oil supply channel is held back by the oil fence ring, forming the oil reservoir.