Patent ID: 7445552
Filing Date: 2008-11-04
Classification: F16C,F16F

Abstract:
1. A dual-mass flywheel comprising: a first flywheel being fixed to a crankshaft of an engine, said first flywheel being configured to receive torque transmitted from said crankshaft; a second flywheel being configured to rotate relative said first flywheel; a damper mechanism being configured to connect elastically said second flywheel in a rotation direction with said first flywheel; a support plate being fixed to said crankshaft and having a support portion extending in an axial direction, said support plate being arranged on a crankshaft side of the first flywheel; a plate member being disposed between said flange and said first flywheel; and a bearing being configured to support rotatably said second flywheel on said support plate, said bearing comprising a needle bearing having a plurality of needles disposed between a first peripheral surface of said support plate and a second peripheral surface of said second flywheel, said bearing being supported by said support portion on an inner peripheral side of said second flywheel, said second flywheel having a flange extending radially inward on the crankshaft side of said bearing, and said support portion being fixed to a retaining member extending radially outward, and said bearing being arranged axially between said retaining member and said flange.