Cylindrical elastomeric bearing

Details Cylindrical elastomeric bearing Cylindrical elastomeric bearing

F - Mech Eng,Light,Heat,Weapons

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C

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F16C 27/02 (2006.01) F16C 27/06 (2006.01) F16F 1/38 (2006.01) F16F 1/40 (2006.01)

Patent

CA 1138506

ABSTRACT A cylindrical elastomeric bearing for carrying relatively large compressive radial loads while accommodating thrust and torsional loads acting along the bearing's longitudinal axis. The bearing generally comprises a rigid interior member and a rigid exterior member, with the two members being joined together by bonded concentric laminae comprising alternating strata of resilient material and non-extensible material. The fatigue life of the bearing is enhanced by forming each resilient stratum with a shear modulus of elasticity such that the stratum will tend to carry a strain substantially equal to the strain carried by every other resilient stratum when the bearing is sub- jected to a wide range of different torsional loads. The desired shear moduli of elasticity are attained for the different resilient strata over a wide range of different torsional loads by forming at least some of the resilient strata from two or more substrata of selected thicknesses wherein each substratum within a given resilient stratum com- prises a resilient material having a unique shear modulus.

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