Roller bearing provided with roller skew control and long life c

Details Roller bearing provided with roller skew control and long life c Roller bearing provided with roller skew control and long life c

1994-12-19

1996-12-24

Footland, Lenard A.

Bearings

Rotary bearing

Antifriction bearing

384571, 384625, F16C 1928

Patent

active

055868266

ABSTRACT:
A roller bearing includes an inner raceway member having an inner raceway surface and an outer raceway member having an outer raceway surface. The inner and outer raceway surfaces are spaced apart from one another to define an annular space and a plurality of rolling elements are disposed in the annular space for engaging the inner and outer raceway surfaces as the rolling elements roll in a rolling direction. During operation of the roller bearing, friction forces arise at regions of the inner and outer raceway surfaces that give rise to positive skew moments. Those regions of the raceway surfaces are designed to have greater frictional characteristics than those regions of the inner and outer raceway surfaces where negative skew moment producing friction forces arise. In that way, the skew of the roller can be controlled to be not excessively negative.

REFERENCES:
patent: 3990753 (1976-11-01), Kellstrom et al.
patent: 4379599 (1983-04-01), Sundqvist
patent: 5064298 (1991-11-01), Hibi et al.
patent: 5145267 (1992-09-01), Takata et al.
patent: 5456538 (1995-10-01), Honda et al.
Kellstrom, E. M., "Rolling Contact Guidance of Rollers in Spherical Roller Bearings", The American Society of Mechanical Engineers, United Engineering Center, 345 East 47th Street, New York, New York pp. 1-8. (no date).
Tripp, J. H. et al., "Effects of Surface Roughness on Rolling Bearing Life", Proceedings of Japan International Tribology Conference, Nagoya, 1990, pp. 792-802.

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