Roller separator for bit bearings

Details Roller separator for bit bearings Roller separator for bit bearings

E - Fixed Constructions

21

B

255/78

E21B 10/00 (2006.01) E21B 10/22 (2006.01) F16C 19/40 (2006.01) F16C 19/49 (2006.01) F16C 19/50 (2006.01) F16C 19/56 (2006.01)

Patent

CA 1039706

ROLLER SEPARATOR FOR BIT BEARINGS ABSTRACT OF THE DISCLOSURE The bearing capacity of a rotary rock bit is in- creased even though the total number of rollers in the roller bearing system is actually reduced. A multiplicity of indi- vidual separator elements and a multiplicity of cylindrical rollers are positioned around the bearing pin of the rotary rock bit, between the bearing pin and the cutter member. The separator elements are alternatively positioned between cylindrical rollers. The separator elements assist in main- taining the longitudinal axis of the cylindrical rollers substantially parallel to the longitudinal axis of the beaning pin and 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. -1a-

243876

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