Rolling bearing i.e. grooved ball bearing, for traction electric motor, has spinner disk extending at rolling elements in radial direction, where maximum radial diameter of disk is greater than diameter of rim in axial direction of bodies

摘要

The bearing (100) has an inner ring (110) connected with a shaft of a machine. Rolling elements are arranged between the inner ring and an outer ring (120). A spinner disk (140) is connected with the inner ring. A labyrinth seal structure (150) is connected with the spinner disk and forms a labyrinth seal together with the outer ring. The spinner disk extends at the rolling elements in radial direction from an inner ring. Maximum radial diameter of the centrifugal disk is greater than diameter of a rim (154) in an axial direction of rolling bodies (130).