Bearings – Rotary bearing – Antifriction bearing
Patent
1992-06-05
1994-05-10
Footland, Lenard A.
Bearings
Rotary bearing
Antifriction bearing
384450, F16C 3336
Patent
active
053102690
ABSTRACT:
A roller bearing constructed in accordance with the invention comprises inner and outer rings and rollers therebetween as is known. The rings have no ribs, flanges or grooves but instead axial inner surfaces of the rings provide raceways which are substantially convex and the axial outer surfaces of the rollers are substantially concave to match. These concave and convex surfaces contact one another over contact zones. Each roller has an external surface which is asymmetrical relative to the center of the roller and the geometry is such that during use frictional moments develop at the contact zones between the rollers and the rings to generate a positive skew force on the rollers. This renders the bearing self-tracking.
REFERENCES:
patent: 1646947 (1927-10-01), Armstrong
patent: 1787214 (1930-12-01), Shafer
patent: 2418322 (1947-04-01), Spicacci
patent: 4557613 (1985-12-01), Tallian et al.
Harris Mark A.
Wardle Frank P.
Footland Lenard A.
RHP Bearings Limited
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