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US 5,704,719 AGranted
Street sweeper bearing with wear resistant resiliently biased face seal
AssigneeEmerson Power Transmission Corp.
InventorsJohn P. Cook, James P. Johnson
Life of this patent
Estimating the term…
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AssigneeEmerson Power Transmission Corp.
InventorsJohn P. Cook, James P. Johnson
Estimating the term…
A bearing assembly having primary seals between inner and outer races on opposite sides of roller elements and an auxiliary face seal on at least one end thereof. The auxiliary seal includes a cap fixed to the inner race, and axially movable face seal member disposed within the cap for rotation therewith, and a resilient O-ring biasing and sealing member interposed between the face seal member and the cap for biasing the face seal into sealing contact with the outer race. The face seal, resilient sealing and biasing member, and cap define a multiplicity of seal barriers for preventing solid and liquid contaminants from entering the bearing assembly and reaching the primary seal.
A bearing assembly comprising an inner ring for mounting on a shaft, an outer ring disposed concentrically about said inner ring, a plurality of roller elements interposed between said inner and outer rings, primary seals between said inner and outer races on opposite axial sides of said roller elements, an auxiliary seal on at least one side of said bearing assembly axially outwardly of one of said primary seals, said auxiliary seal including a cap fixed to one of said races, an axially movable face seal disposed within said cap, and a resilient member interposed between said face seal and said cap for biasing said face seal into sealing contact with the other of said races.
A bearing assembly comprising an inner ring for mounting on a shaft, an outer ring disposed concentrically about said inner ring, a plurality of roller elements interposed between said inner and outer rings, primary seals between said inner and outer races on opposite axial sides of said roller elements, an auxiliary seal on at least one side of said bearing assembly axially outwardly of one of said primary seals, said auxiliary seal including an end plate fixed to said inner race, an axially movable non-metallic face seal, and a non-metallic resilient sealing and biasing O-ring member interposed between said face seal and said end plate for biasing said face seal into sealing contact with said outer race.
Dependencies are inferred from the claim text.