Patent ID: 6607196
Filing Date: 2003-08-19
Classification: F16C

Abstract:
A unitary, nonmetallic sealing washer for sealing off a ring-formed opening between an inner ring and outer ring of a ball bearing, the inner ring being mounted on a driving shaft between an electric motor and a hydraulic unit and the outer ring being mounted in a bearing housing, the washer being arranged for preventing outer medium from penetrating into the bearing and simultaneously preventing bearing grease from slipping out of the bearing, the washer comprising a ring-shape body of elastic material, the ring-shape body having an outer flange of a first thickness and an inwardly protruding waist of a second thickness which is less than the first thickness for covering the distance between the two rings, the waist including a first ring-shape member at an inner periphery thereof, the first ring-shape member defining a first radially extending contact surface, the first radially extending contact surface arranged for sliding along the inner ring of the bearing during operation and the outer flange including a second ring-shape member defining a second radically extending contact surface, wherein when the washer is mounted in the bearing housing, the second radially extending contact surface is located mainly radially outside of the outer ring and arranged to make contact with a shoulder on the bearing housing.