Linear motion rolling contact guide unit having a damper-inserte

Details Linear motion rolling contact guide unit having a damper-inserte Linear motion rolling contact guide unit having a damper-inserte

1992-08-19

1994-01-25

Footland, Lenard A.

Bearings

Linear bearing

With detection, nonbearing magnetic or hydraulic feature

384 45, 384 99, F16C 2906

Patent

active

052810283

ABSTRACT:
A linear motion rolling contact guide unit includes a rail, a slider assembly and a plurality of rolling members interposed between the rail and the slider assembly. The slider assembly includes a pair of lower and upper sub-assemblies. The lower sub-assembly is slidably mounted on the rail and the upper sub-assembly is mounted on the lower sub-assembly such that it may move transversely relative to the lower sub-assembly over a limited distance. A low friction intermediate member is provided at a first location in a gap between the opposed surfaces of the upper and lower sub-assemblies so as to provide an enhanced sliding characteristic therebetween. A squeeze film damper mechanism is provided at a second location in the gap between the upper and lower sub-assemblies for damping and/or absorbing undesired motion.

REFERENCES:
patent: 4643590 (1987-02-01), Olasz
patent: 4872767 (1989-10-01), Knapp
patent: 5139347 (1992-08-01), Hattori
patent: 5178400 (1993-01-01), Singh

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