Bearing separator and sealing system for rock bit

Details Bearing separator and sealing system for rock bit Bearing separator and sealing system for rock bit

E - Fixed Constructions

21

B

255/78

E21B 10/00 (2006.01) E21B 10/22 (2006.01) F16C 19/00 (2006.01) F16C 33/46 (2006.01)

Patent

CA 1050006

BEARING SEPARATOR AND SEALING SYSTEM FOR ROCK BIT Abstract of the Disclosure The bearing capacity of a rotary rock bit is increased by providing a bearing separator and sealing system which maintains the cylindrical roller bearings in proper alignment without interferring with the integrity of the seal. A spacer unit is positioned around the bearing pin of the rock bit between the cutter member and the bearing pin. The spacer unit includes an annular body with a plurality of separator elements cantilevered from said annular body extending toward the outer end of the bearing pin. The cylindrical rollers are alternately positioned between the separator elements. The annular body of the spacer unit is located in the cone mouth of the cutter member. A seal member is located in the cone mouth of the cutter member between the rock bit body and the annular body of the spacer unit. -1a-

266165

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