Pivot assembly

Details Pivot assembly Pivot assembly

F - Mech Eng,Light,Heat,Weapons

16

C

305/24, 308/24

F16C 11/08 (2006.01) B62D 55/00 (2006.01) B62D 55/15 (2006.01) E02F 9/00 (2006.01) F16C 11/04 (2006.01) F16C 33/22 (2006.01) F16D 3/00 (2006.01) F16F 1/393 (2006.01)

Patent

CA 1288457

Abstract of the Disclosure Pivot Assembly A pivot assembly provides limited pivotal motion between a relatively stationary member and a relatively moveable member which is supported on the stationary member. The stationary member is secured to a vehicle frame and the moveable member forms a portion of an endless track supporting frame. The pivot assembly includes a plurality of elastomeric bearings between the stationary and moveable members and a loading member to compress and preload the bearings. Conventional pivot assemblies utilize metal sleeve, roller or ball bearings to provide relative pivotal motion between stationary and cooperative moveable members. Such metal bearings require constant lubrication, and seals to contain the lubrication, and produce objectionable noise and vibration. The subject pivot assembly requires no lubrication or seals and generates low levels of noise and vibration by isolating the stationary and moveable members with the elastomeric bearings. The dual tapered, elastomeric preloaded bearings restrain and capture the relatively moveable member axially and radially without a thrust bearing.

573743

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