Supporting arrangement for a bearing in an electric motor

Details Supporting arrangement for a bearing in an electric motor Supporting arrangement for a bearing in an electric motor

1995-08-30

1996-11-26

Hannon, Thomas R.

Bearings

Rotary bearing

Antifriction bearing

384462, 384489, 384493, F16C 2300, F16C 1952, F16C 3378

Patent

active

055778470

ABSTRACT:
An improved supporting arrangement for a bearing in an electric motor is provided for preventing the development of fretting corrosion. The electric motor comprises a housing, the housing including a longitudinal axis and bores at either end thereof so that the bores are aligned to the longitudinal axis, a rotating shaft extending along the longitudinal axis through the bores, and bearings for rotationally supporting the rotating shaft at either end thereof, the bearings being provided within the respective bores. The supporting arrangement comprises a support in the form of a ring for supporting the one of the bearings into which the bearing is fitted, the support being fitted into one of the bores and slidable along the longitudinal axis, a pair of O-rings provided between the outer surface of the support and the inner surface of the bore into which the support is fitted, the O-rings being separated from each other by an interval along the longitudinal axis, a lubricant receiving receptacle provided between the pair of O-rings, and lubricant material applied on the outer surface of the support, on the inner surface of the bore, and in the lubricant receiving receptacle.

REFERENCES:
patent: 2345952 (1944-04-01), Smith
patent: 3214224 (1965-10-01), Lash
patent: 4551032 (1985-11-01), Mottershead
patent: 4560289 (1985-12-01), Wood, III

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