Bearing having arch-shaped recesses

Details Bearing having arch-shaped recesses Bearing having arch-shaped recesses

1994-08-15

1995-07-18

Hannon, Thomas R.

Bearings

Rotary bearing

Plain bearing

384279, 384283, F16C 3306

Patent

active

054335329

ABSTRACT:
An annular bearing has its bearing surface on the inner surface. The bearing surface is formed to improve bearing properties, that is, to improve adaptability to an impact load and an imbalanced load. A method of manufacturing a bearing having such a bearing surface is given. An annular bearing blank, together with a mandrel having a plurality of arch-shaped ridges extending axially on the outer surface of the mandrel and a sleeve fitted on a periphery of the mandrel, is pushed into an inner hole of a molding die. The material is accordingly closed in a space defined by the mandrel, the inner hole, the sleeve and an ejector inserted into the bottom part of the inner hole. Thus, a plurality of arch-shaped recesses are formed extending axially on the inner surface of the bearing blank.

REFERENCES:
patent: 1138408 (1915-05-01), Pierce
patent: 1722787 (1929-07-01), Claus
patent: 1731790 (1929-10-01), Payne
patent: 2660076 (1953-11-01), May
patent: 4748862 (1988-06-01), Johnston
patent: 4758202 (1988-07-01), Maciag et al.
patent: 4785648 (1988-11-01), Budrean et al.
patent: 4810105 (1989-03-01), Arlott et al.

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