Patent ID: 6727615
Filing Date: 2004-04-27
Classification: B60S,F16C,F16H,H02K

Abstract:
An electric drive unit for windshield wipers of a motor vehicle, comprising a drive motor having an armature (12) accommodated in a substantially cup-shaped pole housing (10), a substantially cup-shaped gearbox (20), secured on a face end of the pole housing (10), for receiving gear elements that convert a rotation of an armature shaft (14) of the armature (12), said armature shaft (14) is supported on one end in the pole housing (10) and on another other end in the gearbox (20), the armature shaft (14), adjacent to a bottom (11) of the pole housing, is supported in a cylindrical bearing (50) mounted with a press-fit, whose outer diameter (da) is greater than or equal to three times a length (l) of the cylindrical bearing, said cylindrical bearing (50) is disposed in an indentation (17) embodied in the pole housing bottom (11), which indentation has an inner end surface, and, prior to being installed, the outer diameter (da) of the cylindrical bearing (50) is greater than an inner diameter of the indentation, and after insertion the cylindrical bearing (50) does not touch the inner end surface of the indentation.