Sintered oil-impregnated bearing and method for manufacturing sa

Details Sintered oil-impregnated bearing and method for manufacturing sa Sintered oil-impregnated bearing and method for manufacturing sa

1996-07-12

1998-01-06

Footland, Lenard A.

Bearings

Rotary bearing

Plain bearing

384902, F16C 1702

Patent

active

057047189

ABSTRACT:
Oil-impregnated sintered bearing has a bearing bore with axially extending grooves formed therein so that in a cross-section of the bearing bore concave and convex portions alternate in the circumferential direction, the surface porosity of the convex portions being preferably larger than that of the concave portions. Formed in part of an inner circumference of the bearing bore, is a bearing surface for supporting a rotary shaft, the rest of the inner circumference other than the bearing surface extending toward an end edge of the bearing bore at a taper angle of 2.degree. to 10 over a width of at least 1/3 or more of an axial width of the bearing surface.

REFERENCES:
patent: 4509803 (1985-04-01), Takenaka et al.
patent: 4582368 (1986-04-01), Fujita et al.
patent: 5120140 (1992-06-01), Nakagawa et al.
patent: 5282688 (1994-02-01), Kanezaki et al.

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