Support of a machine part which rotates on a bolt or the like

Details Support of a machine part which rotates on a bolt or the like Support of a machine part which rotates on a bolt or the like

1980-06-12

1982-04-20

Footland, Lenard A.

Cutlery

308240, F16C 302, F16C 314

Patent

active

043255892

ABSTRACT:
A multi-surface friction bearing construction for a machine part, for example a planet gear of a planetary gear system, which rotates on a stationary pin or the like, the rotating machine part having a loading direction which is stationary relative to the pin. Several bearing surfaces on the circumference of the stationary pin are formed by pitch circles each having a cylindrical surface. The rotating machine part has a circular cylindrical bore. The radii of the cylindrical surfaces each differ from the radius of the cylindrical bore of the rotating part and form points of intersection with the radii of adjacent cylindrical surfaces. The stationary pin also has axially extending grooves in the surface thereof. The rotating part at least in the carrying area of its circular cylindrical bore is of a material having good sliding characteristics and a higher heat expansion coefficient than that of the other portions of the rotating part.

REFERENCES:
patent: 1591391 (1926-07-01), Lundberg
patent: 3625580 (1971-12-01), DeHart et al.
patent: 4235481 (1980-11-01), Fukuoka et al.

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