Thrust ball-bearing

Details Thrust ball-bearing Thrust ball-bearing

1992-12-14

1993-11-23

Hannon, Thomas R.

Bearings

Rotary bearing

Antifriction bearing

384606, 384614, F16C 3366, F16C 3346

Patent

active

052637794

ABSTRACT:
A thrust ball-bearing in which a good lubrication is maintained for a long period of time and having a long service life. The bearing comprises a plurality of balls having a uniform diameter, a retainer which retains the balls, and two plates situated at either side of the retainer and rotatable relative to each other via the balls. The retainer has a thickness less than the diameter of the ball. A plurality of holes that retain each ball is provided on the retainer and a groove having a rectangular cross section is formed in a portion between two adjacent holes. An amount of grease applied to the ball is collected inside the groove and provided to the ball located on the downstream side of flowing grease without moving outwardly of the groove even if a centrifugal force generated by a rotation of the bearing is exerted.

REFERENCES:
patent: 1913275 (1933-06-01), Herrmann
patent: 2072515 (1937-03-01), Delaval-Crow
patent: 3414341 (1968-12-01), Murphy

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