Rock bit bearing pressure equalization system

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

1980-04-24

1985-04-23

Footland, Lenard A.

Bearings

Rotary bearing

Roller drill bit

F16C 3310

Patent

active

045126690

ABSTRACT:
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.

REFERENCES:
patent: 3017937 (1962-01-01), Bobo
patent: 3029881 (1962-04-01), Swart
patent: 3048230 (1962-08-01), Angel
patent: 3675729 (1972-07-01), Neilson
patent: 3839774 (1974-10-01), Jackson
patent: 3850256 (1974-11-01), McQueen
patent: 4199856 (1980-04-01), Farrow et al.

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