Patent ID: 7681896
Filing Date: 2010-03-23
Classification: B60G,F16C

Abstract:
1. A thrust bearing supported by a coil spring seat and a strut piston rod, the thrust bearing comprising: a primary case fixed to the strut piston rod; a secondary case that is supported by the coil spring seat and is coaxially rotatable with respect to the primary case; a plurality of rolling elements axially interposed between the primary and secondary cases; and a seal unit provided on an inner circumferential surface of the secondary case, wherein, when the strut piston rod is inserted into the secondary case, the seal unit is brought into contact with an outer circumferential surface of the strut piston rod for sealing a gap between the inner circumferential surface of the secondary case and the outer circumferential surface of the strut piston rod such that a liquid is prevented from intruding from the gap, and wherein said seal unit is contained between an upper portion of the inner circumferential surface of the secondary case and a lower portion of the inner circumferential surface of the secondary case.