Bearings – Linear bearing – Fluid bearing
Patent
1985-01-08
1986-08-19
Footland, Lenard A.
Bearings
Linear bearing
Fluid bearing
74110, 74590, F16C 3206
Patent
active
046065873
ABSTRACT:
A gas bearing air slide assembly includes a slide ram movable within a relatively stationary housing. The slide ram and housing have a plurality of mated planar slide surfaces. Pressurized air is supplied between the mated slide surfaces of the slide ram and housing to create a hydrostatic bearing separating said mated surfaces and supporting the slide ram for longitudinal movement with respect to the housing. A counterbalance is provided on the slide ram for movement in direction opposite that of slide ram movement to compensate for slide ram axial displacement as it is extended from the housing. The housing is formed from a pair of identical housing halves joined along a joinder plane which passes through a central longitudinal axis of the slide ram. The slide surfaces of the ram and housing are mated by equalized lapping to a point of zero tolerance. Spacer shims are positioned along the joinder plane between the housing halves when assembled to provide sufficient tolerance between the mated slide surfaces to permit movement of the slide ram with respect to the housing.
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Automated Quality Technologies Inc.
Footland Lenard A.
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