Patent ID: 6367592
Filing Date: 2002-04-09
Classification: F16D,F16H,H02K

Abstract:
Actuator, comprising a housing, a motor, an actuating member and a screw mechanism providing a linear movement of the actuating member with respect to the housing in response to a rotational movement of the motor, which screw mechanism comprises a screw and a nut one of the which is rotatably supported with respect to the housing by means of a bearing, and a reduction gear means, the actuating member and the reduction gear means being situated at opposite ends of the screw mechanism, the nut of the screw mechanism being rotatably supported by means of the bearing, and the screw being held against rotating, characterized in that the actuating member is a piston which is slidably held within the cylinder space of the housing, and in that the bearing is an angular contact ball bearing, the reduction gear means being contained in a reduction gear module and the screw mechanism being contained in a screw mechanism module, the screw mechanism module comprising said angular contact bearing, the outer ring of which bearing rests against an inwardly protruding flange of the housing.