Patent ID: 6468172
Filing Date: 2002-10-22
Classification: F16H

Abstract:
A tensioner for a power transmission element of a traction drive, comprising:a housing; a swivel arm having a free end for connection to a rotatable tension roller which rests on the power transmission element; a swivel bearing for rotatably supporting the swivel arm in the housing, said swivel bearing including an axle for connection to the swivel arm and a bushing forming part of the housing and supporting the axle; a spring positioned in a peripheral zone of the swivel bearing between the swivel arm and the housing; a friction disk mounted in fixed rotative engagement to the axle and supported by the housing via a friction lining; and a disk-shaped first dampening element positioned between the friction lining and the housing to thereby decouple the friction lining from the housing to effectively prevent transmission of structure-borne noise, wherein the friction lining is made of a material having a modulus of elasticity which exceeds a modulus of elasticity of the first dampening element.