Roll-formed bearing race and process for producing the same

Details Roll-formed bearing race and process for producing the same Roll-formed bearing race and process for producing the same

1997-06-03

1999-03-16

Hannon, Thomas R.

Bearings

Rotary bearing

Antifriction bearing

72106, 29898066, 384512, 384559, 384571, F16C 3364, B21D 1704, B21H 106

Patent

active

058821236

ABSTRACT:
A double cup for a tapered roller being has a concave intervening surface between the small diameter ends of its tapered raceways. The cup is produced by roll forming a tubular blank at ambient temperature into a ring form having the raceways and the concave intervening surface. The presence of the concave intervening surface leaves only a shallow discontinuity in the exterior surface of the ring form, and that discontinuity is machined away with the removal of only a minimal amount of stock. The cup weighs less than cups with straight intervening surfaces.

REFERENCES:
patent: 1395607 (1921-11-01), Sorensen
patent: 1904734 (1933-04-01), Schlaa
patent: 3434322 (1969-03-01), Cowles et al.
patent: 3446048 (1969-05-01), Marcovitch
patent: 3469427 (1969-09-01), Rollins
patent: 3528271 (1970-09-01), Di Ponio
patent: 3681962 (1972-08-01), Marcovitch
patent: 4522515 (1985-06-01), Miki et al.
patent: 5261159 (1993-11-01), Yasuda et al.
patent: 5639167 (1997-06-01), Hans et al.

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