Roller bearing of superior run-out characteristics

Cutlery

Patent

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Details

308202, 308184R, 308215, F16C 1300

Patent

active

040023800

ABSTRACT:
This disclosure relates to a roller bearing assembly which, when used to support a shaft for rotation, unexpectedly greatly reduces the run-out of the shaft even as compared to previous super precisions roller bearings. It has been discovered that if hollow rollers are substituted in a roller bearing for solid rollers and the hollow rollers are positioned between an outer race and a shaft or inner race in a preloaded condition with the allowable flexure of the rollers being at least slightly greater than the variations in radial spacing between the races, the run-out of a shaft axis so supported is greatly reduced. Further, the life of such a bearing is greatly extended. In addition, less precisions rollers may be utilized.

REFERENCES:
patent: 1652766 (1927-12-01), Crouse
patent: 2859076 (1958-11-01), Lorig
patent: 3410618 (1968-11-01), Harris et al.

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