Cantilevered roller separator for rock bit bearings

Details Cantilevered roller separator for rock bit bearings Cantilevered roller separator for rock bit bearings

1975-02-13

1976-06-15

Wood, Jr., M. H.

Cutlery

308217, F16C 1904

Patent

active

039632822

ABSTRACT:
The roller bearing capacity of a rotary rock bit is increased even though the total number of rollers in the roller bearing system is reduced. Two halves of a split ring bearing cage are positioned around the bearing pin of a rotary rock bit between the bearing pin and the cutter member. The split ring bearing cage includes cantilevered separator elements that extend from the body of the cage on the bearing pin toward the body of the bit. The separator elements are alternatively positioned between cylindrical rollers and act to maintain the rollers in a position to receive the maximum stress imposed on the roller bearing system. The cantilevered separator elements provide a material for the rollers to slide against that is more compatible with the rollers than when the rollers are sliding against each other.

REFERENCES:
patent: 71973 (1867-12-01), Burnap
patent: 3601456 (1971-08-01), Becker

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