Rock bit bearing pressure equalization system

Details Rock bit bearing pressure equalization system Rock bit bearing pressure equalization system

E - Fixed Constructions

21

B

255/73

E21B 10/22 (2006.01) E21B 10/24 (2006.01) F16C 33/10 (2006.01) F16C 33/76 (2006.01)

Patent

CA 1154751

ROCK BIT BEARING PRESSURE EQUALIZATION SYSTEM Abstract of the Disclosure A lubrication system for a multiple segment rotary rock bit, with each segment having lubrication supply means to the cutter bearing structure associated therewith and whereby each supply means is in lubricant flow communication with the lubricant supply means of the remaining segments so that the internal pressure of the lubricant system is substantially equal in each segment.

374091

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