Sealed rolling bearing

Details Sealed rolling bearing Sealed rolling bearing

1990-05-04

1991-08-06

Footland, Lenard A.

Bearings

Rotary bearing

Antifriction bearing

384484, 384488, F16C 3378

Patent

active

050372130

ABSTRACT:
A sealed rolling bearing including inner and outer races and a pair of sealing plates in which fixing grooves each for fixedly receiving a fixing edge portion of a corresponding sealing plate are formed in the edge portions of the peripheral surface of one of the inner and outer races, and slide grooves each for slidably receiving a slidable seal edge portion of a corresponding one of the sealing plates are formed in the edge portions of the peripheral surface of the other race. Each slide groove has a U-shaped cross-section including a bottom surface and a pair of axially outward and inward inclined surfaces. Each sealing plate comprises a core and a flexible seal member integrally fixed to the core, and first, second and third lips which extend axially outwardly, axially inwardly and substantially radially, respectively are formed on the slidable seal edge portion of each sealing plate. The first lip is slidably abutted against a peripheral surface contiguous to the axially outward inclinded surface of the corresponding slide groove, the second lip is slidably abutted against the axially inward inclined surface, and the third lip confronts the bottom surface with a slight clearance.

REFERENCES:
patent: 4505484 (1985-03-01), Ohkuma et al.

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