Bearings – Rotary bearing – Plain bearing
Patent
1994-10-20
1996-02-13
Footland, Lenard A.
Bearings
Rotary bearing
Plain bearing
384279, 384902, F16C 3310
Patent
active
054907306
ABSTRACT:
The improved slide bearing assembly comprises at least a shaft and a bush that is formed of a porous iron-base sintered material and is characterized in that the bush is impregnated with a lubricant oil having a viscosity of 240-1500 cSt. The bearing assembly can be operated in slow- and high-pressure applications without oil refillings for a prolonged period of at least several years. The shaft is preferably formed of an iron or a steel member that have been subjected to a treatment of surface modification. The slide bearing assembly is preferably used in such an environment that the working pressure applied to the sliding surfaces is at least 6.0 kgf/mm.sup.2 and that the sliding speed is in the range 2-5 cm/sec.
REFERENCES:
patent: 4371220 (1983-02-01), Brucher
patent: 4952328 (1990-08-01), Davis et al.
patent: 4981602 (1991-01-01), Ripple et al.
patent: 5401105 (1995-03-01), Suzuki et al.
"Iwanami's Dictionary of Physicochemistry", 4th Edition, p. 1276. (no date).
Akita Hideki
Hatano Kazuyoshi
Nakatani Hideaki
Ogasawara Manabu
Ota Makoto
Footland Lenard A.
Hitachi Construction Machinery Co. Ltd.
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