Slide bearing slide bearing assembly and small motor

Details Slide bearing slide bearing assembly and small motor Slide bearing slide bearing assembly and small motor

1995-12-26

1998-03-24

Cain, Edward J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524425, 524427, 524449, 524451, 524494, 524495, 524496, C08K 300

Patent

active

057313733

ABSTRACT:
A slide bearing, a slide bearing assembly and a small motor with a slide bearing assembly which are comparable to or even better than conventional sintered oil-impregnated bearings in mechanical strength, stability of friction coefficient, and which are small and lightweight. The bearing assembly includes a housing having a circular hole and a through hole for supporting a rotary shaft and integrally formed from a resin composition comprising 20-40% by weight of a synthetic resin such as polyphenylene sulfide, 20-60% by weight of an inorganic filler such as mica, 10-30% by weight of a fibrous reinforcing material such as carbon fiber, 3-7% by weight of a lubricating oil such as fatty acid ester oil, and 1-5% by weight of an oil retaining material such as talc. There is also provided a slide bearing formed from the same resin composition as above. There is also provided a small motor having the above slide bearing assembly, a stator carried by the housing of the bearing assembly, and a rotor having a rotary shaft supported by the slide bearing of the bearing assembly.

REFERENCES:
patent: 4877813 (1989-10-01), Jiano et al.
patent: 5415791 (1995-05-01), Chou et al.

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