Bearings – Rotary bearing – Antifriction bearing
Patent
1982-09-30
1985-06-18
Levy, Stuart S.
Bearings
Rotary bearing
Antifriction bearing
384613, F16C 1910
Patent
active
045237930
ABSTRACT:
A high-performance low-torque anti-friction bearing assembly having numerous applications including dynamic support of a stabilized platform under severe operating conditions. The assembly consists of two rings provided with two pairs of raceways having respective rows of balls therebetween preferably under static preload. The balls and their raceways have a conformity factor of approximately 0.56 to 0.60 and the two rows of balls are in contact with a respective pair of raceways at converging similar contact angles of about 35 degrees. The ratio of the ball path diameter and the square root of the cross-sectional area of the bearing is at least 15. A bearing incorporating these features performs at high efficiency with minimal torque losses under both simultaneous and non-simultaneous axial, radial and moment load conditions and associated distortions.
REFERENCES:
patent: 2055174 (1936-09-01), Baker
patent: 2733967 (1956-02-01), Jones, Jr.
patent: 3131006 (1964-04-01), Anderson
patent: 3913993 (1975-10-01), Ernst
patent: 4223961 (1980-09-01), Martinez
patent: 4330160 (1982-05-01), Stolz et al.
patent: 4400042 (1983-08-01), Fritz
Keystone Engineering Company
Levy Stuart S.
Werner David
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