Bearing with dynamic pressure grooves and method for manufacturi

Details Bearing with dynamic pressure grooves and method for manufacturi Bearing with dynamic pressure grooves and method for manufacturi

1991-12-13

1992-07-14

Footland, Lenard A.

Bearings

Rotary bearing

Plain bearing

384300, 3849071, 384909, 384911, 384913, F16C 3320

Patent

active

051297396

ABSTRACT:
A bearing with dynamic pressure grooves includes an outer cylinder made of a metal and a resin sheet bonded to the inner peripheral surface of the outer cylinder. The resin sheet is made of a thermoplastic resin, for example, a polytetra fluoroethylene, as a main component mixed with a wear-resistant improving material, for example, graphite or the like. The resin sheet is formed with a pattern of dynamic pressure generating grooves formed in an inner surface by plastic work. The pattern of grooves is varied depending on the types of relative movement between the outer cylinder and a shaft body, i.e., whether an axial linear movement, a rotational movement, or a spiral movement.

REFERENCES:
patent: 3464845 (1969-09-01), Osborn et al.
patent: 4123122 (1978-10-01), Gabrielson et al.
patent: 4865467 (1989-09-01), Becker et al.
patent: 4875263 (1989-10-01), Furumura

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