Bearing shaft seal

Details Bearing shaft seal Bearing shaft seal

1992-02-07

1993-02-16

Hannon, Thomas R.

Bearings

Rotary bearing

Antifriction bearing

277153, F16C 3378, F16J 1532

Patent

active

051865483

ABSTRACT:
A seal assembly for sealing an annular space between a housing having a cylindrical bore therein and a shaft member extending into and mounted for coaxial rotation relative to the bore, includes a resilient sealing body having an annular lubrication sealing lip and a dust seal including first inwardly directed resilient dust sealing lip having an inside diameter less than the diameter of the shaft member for contacting the shaft member and forming a primary dust seal therewith and a second inwardly extending annular dust seal lip between the first dust seal lip and the second dust seal lip having an inside diameter slightly greater than the diameter of said shaft member to form a non-contacting type seal with the other surface of the shaft member.

REFERENCES:
patent: 4243232 (1981-01-01), Repella
patent: 4278261 (1981-07-01), Miura et al.
patent: 4336945 (1982-06-01), Christiansen et al.
patent: 4432557 (1984-02-01), Drucktenhengst
patent: 4550920 (1985-11-01), Matsushima
patent: 4721312 (1988-01-01), Hornberger
patent: 4747603 (1988-03-01), Sugino et al.
patent: 4799808 (1989-01-01), Otto
patent: 4848776 (1989-07-01), Winkler
patent: 4987826 (1991-01-01), Deppert et al.
patent: 5037213 (1991-08-01), Uchida et al.
patent: 5083802 (1992-01-01), Shimasaki et al.

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