Schaeffler Technologies Ag & Co .kg

Manfred Wilhelm

Bernd Hartmann

Stefan Mack

Scott Thompson

Thomas Mennerat

Fred G Seebeck

Horst Adel

Scott Ribey

A clamping device with mechanical damping for a traction mechanism drive is provided. The device includes a clamping arm which carries a tension roller on one end thereof and is rotatably mounted in a housing at the other end thereof via a shaft connected thereto in a rotationally fixed manner, and is elastically supported on the housing by a torsion spring. A free end of the shaft is connected to a friction disk in a rotationally fixed manner, and a friction lining is arranged between the friction disk and an axial abutment surface of the housing. The invention reduces the friction lining wear and increases the damping capacity thereof. To accomplish this, a separate friction disk (&#x2033;&#x2033;) is connected to a separate friction lining (&#x2033;&#x2033;) in a positively locked manner without play, and the separate friction lining ((&#x2033;&#x2033;) is in frictional contact with the axial abutment surface () of the housing ().

Clamping drive with mechanical damping for a traction mechanism drive

Tensioning device () for a traction element drive, such as a belt or chain drive, with a tensioning arm (), which can pivot relative to a body () about a pivot axle () and on whose distal end a roller () supported rotatably is arranged for tensioning the traction element, for the purpose of which there is a torsion spring () acting between the pivot axle () of the tensioning arm () and the body (), and the pivot axle () is supported so that it can slide by at least one radial-bearing arrangement () and at least one axial-bearing arrangement (), wherein the axial-bearing arrangement () comprises a friction disk () arranged concentric to the pivot axle (), wherein the friction disk () has an axial stop surface (), which comprises at least one radial circumferential key groove () and that at least one radial circumferential friction spring, which extends into the key groove (), is constructed in the surface adjacent to the stop surface () of the friction disk ().

Tensioning device for a traction element drive with an improved axial-bearing arrangement

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West Bloomfield, MI, United States of America

Manfred Wilhelm