Lubricating structure for oil seals assembled with bearings

Details Lubricating structure for oil seals assembled with bearings Lubricating structure for oil seals assembled with bearings

1996-04-26

1999-12-21

Graysay, Tamara L.

Bearings

Rotary bearing

Antifriction bearing

384477, 384913, 277394, F16C 1900, F16C 3376

Patent

active

060040394

ABSTRACT:
In a structure for lubricating an oil seal interposed between a shaft and an outer circumferential member that surrounds the shaft, a bearing device provides: a shaft rotatable; an outer case surrounding the shaft and including a large-diameter portion, a medium-diameter portion, a small-diameter portion, and a contact portion connecting the medium-diameter portion and the small-diameter portion; a bearing assembly disposed in the large-diameter portion for supporting the shaft; an oil seal assembly interposed between the shaft and the outer case and contacting the medium-diameter portion and the contact portion; and a lubricant-containing member fitted to the oil seal assembly and molded plastically in an annular shape out of a resinous material containing a lubricant. The structure improved by the bearing device ensures satisfactory lubricating effects in a consistent manner.

REFERENCES:
patent: 4169605 (1979-10-01), Nishimoto et al.
patent: 4198584 (1980-04-01), Otto
patent: 4493490 (1985-01-01), Ohma
patent: 5110143 (1992-05-01), Hibbetts
patent: 5387040 (1995-02-01), Firestone et al.

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