Rubber shock absorbing bearing - has split cylindrical metal shells transferring axial compression to tubular rubber core

摘要

The rubber cushioned shaft bearing is cheap to produce, simple to assemble and uses low tolerance parts, and is also re-usable and highly reliable. It is constructed by vulcanising cylindrical thin metal rings (4, 5, 6, 7) to the inner and outer surfaces at both ends of a tubular rubber body (1). When assembled on a shaft (9), these rings are compressed axially and held by shoulders (13, 14) at one end and by circlips (10) lodged in the housing (8) a tthe other. The rings are slotted lengthways and covered by a rubber film and vulcanised over their free surfaces. The rings extend at least as far in as the point where the axial frictional force due to compression of the rubber is equal to the shear force between the body (1) and housing (8) or shaft (9), due to distortion of the rubber. Spherical and ogival forms of the bearing are also possible.