Patent ID: 8063525
Filing Date: 2011-11-22
Classification: F16C,H02K

Abstract:
1. A retainer bearing for retaining a rotor shaft of an electric machine, comprising: a bearing outer ring made of steel and having an inner surface; a bearing inner ring made of steel and having an outer surface; and at least one sliding element placed between the bearing outer ring and the bearing inner ring and prestressed in a radial direction of the retainer bearing, wherein either the inner surface of the bearing outer ring and an adjoining outer friction surface of the at least one sliding element are configured to establish a coefficient of sliding friction in the range of from 0.05 to 0.15, or the outer surface of the bearing inner ring and an adjoining inner friction surface of the at least one sliding element are configured to establish a coefficient of sliding friction in the range of from 0.05 to 0.15.