Sintered oilless bearing

Details Sintered oilless bearing Sintered oilless bearing

1997-04-09

1998-07-28

Footland, Lenard A.

Bearings

Rotary bearing

Plain bearing

384279, 384902, F16C 1702

Patent

active

057854297

ABSTRACT:
A sintered oilless kinetic pressure bearing containing an oil is formed with a plurality of grooves along the inner diameter to produce the kinetic pressure, in which the proportion between the groove and corresponding inner periphery portion is appropriately maintained according to the Reynolds equation for decreasing initial abrasion and heightening durability to lengthen the life while a pressure is induced throughout the inner periphery for providing a stiffness coefficient impervious to a great impact or high load imposed by an external force and heightening stability in the rotating motion. The bearing in a cylindrical sintered oilless bearing includes a plurality of grooves along the inner periphery plane thereof in the lengthwise direction of a shaft such that an interval between the grooves become respective inner periphery portions and the groove and inner periphery portion are partitioned by side planes. Thus, assuming that an angle range of the groove is denoted by .alpha. and an angle range of the inner periphery portion is by .beta..

REFERENCES:
patent: 5372433 (1994-12-01), Nakanishi et al.
patent: 5433532 (1995-07-01), Kawageo et al.
patent: 5474386 (1995-12-01), Komarsu
patent: 5490730 (1996-02-01), Akita et al.

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