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US 6,280,097 B1Granted
Corrosion resistant cam follower bearing assembly
AssigneeEmerson Power Transmission Manufacturing, L.P.
InventorsKevin Dean Mues, Gary Theodore Sullwold
Life of this patent
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AssigneeEmerson Power Transmission Manufacturing, L.P.
InventorsKevin Dean Mues, Gary Theodore Sullwold
Estimating the term…
A corrosion resistant cam follower bearing assembly which includes a cam follower shaft, an outer bearing ring disposed about the shaft which defines an inner roller raceway, a sleeve fixedly mounted on the cam follower shaft and defining an inner roller raceway, a plurality of rollers interposed between said raceways, and seals at opposite axial ends of said outer bearing ring for protectively containing the roller elements and raceways. The outer bearing ring and sleeve are formed of heat treated corrosion resistant steel such that the raceways are hardened to at least 58 HRC, the outer bearing ring external exposed surfaces have a chrome plating for improved corrosion resistance in a working environment, and the cam follower shaft which also can be exposed to corrosive contaminants in a working environment is formed of a different and substantially more corrosion resistant material than the material of the sleeve and the outer bearing ring that defines the inner and outer bearing races.
A cam follower bearing assembly comprising a cam follower shaft having a mounting end and a bearing end, an outer cam follower bearing ring disposed concentrically about the bearing end of said shaft for relative rotation, a sleeve separate and apart from said cam follower shaft fixedly mounted on said bearing end of said cam follower shaft, said outer ring and sleeve defining respective outer and inner annular raceways, a plurality of rollers interposed between said raceways for facilitating relative rotational movement between said outer ring and said cam follower shaft and sleeve, said outer ring and sleeve being formed of a heat treated hardened steel, and said cam follower shaft being formed of a material which is different from the material of said sleeve and substantially more resistant to corrosion.
A cam follower bearing assembly comprising a cam follower shaft having a mounting end and a bearing end, an outer cam follower bearing ring disposed concentrically about the bearing end of said shaft for relative rotation, a sleeve separate and apart from said cam follower shaft fixedly mounted on said bearing end of said cam follower shaft, said outer ring and sleeve defining respective outer and inner annular raceways, a plurality of rolling elements interposed between said raceways for facilitating relative rotational movement between said outer ring and said cam follower shaft and sleeve, said outer ring and sleeve being formed of a heat treated steel such that said raceways have a hardness of at least 58 HRC, and said cam follower shaft being formed of a material which is different from the material of said sleeve and outer ring and which has a hardness less than 58 HRC.
Dependencies are inferred from the claim text.