Compact ball spline bearing assembly

Details Compact ball spline bearing assembly Compact ball spline bearing assembly

1991-06-03

1992-09-08

Hannon, Thomas R.

Bearings

Linear bearing

Ball bearing

384 25, 384101, F16C 2904, F16C 2100

Patent

active

051452626

ABSTRACT:
A ball spline bearing assembly includes a spline shaft having a peripheral surface formed with a spline groove, an outer sleeve fitted onto the spline shaft with a predetermined gap therebetween and a plurality of balls interposed between the spline shaft and the outer sleeve. A ball holder is provided in a radial hole formed in the outer sleeve and a ball is rotatably held in position and in engagement with the spline groove by the ball holder. A fluid line is formed in the outer sleeve and the ball holder so that a pressurized fluid may be supplied to establish a fluidic cushion between the ball holder and the ball. Also provided is a plurality of solid lubricants which are normaly pressed against the spiral groove to keep the groove lubricated at all times.

REFERENCES:
patent: 2595482 (1952-05-01), Palumbo
patent: 3503269 (1970-03-01), O'Connor
patent: 4280341 (1981-07-01), Krude
patent: 4433875 (1984-02-01), Walter et al.
patent: 4437782 (1984-03-01), Geisthoff

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