Rock bit bearing system for carrying out thrust

Details Rock bit bearing system for carrying out thrust Rock bit bearing system for carrying out thrust

1975-03-07

1976-04-13

Song, Robert R.

Cutlery

308174, 175372, F16C 1900

Patent

active

039500411

ABSTRACT:
A rotatable cutter is mounted upon the bearing pin of a rotary rock bit. The cutter contacts and disintegrates earth formations during the drilling of an earth borehole thereby imposing a thrust load on the cutter. The thrust load consists of an out thrust load component substantially parallel to the axis of cutter rotation and a radial thrust load component substantially perpendicular to the axis of the cutter rotation. Substantially the entire out thrust load component is transmitted from the cutter through a ball bearing raceway on the interior surface of the cutter to the ball bearings and from the ball bearings to a ball bearing raceway on the bearing pin. The ball bearing raceways on the cutter and the bearing pin extend a substantial distance on either side of the axial axes of the ball bearings.

REFERENCES:
patent: 2658724 (1953-11-01), Arps
patent: 3303898 (1967-02-01), Bercaru
patent: 3601456 (1971-08-01), Becker
patent: 3620580 (1971-11-01), Cunningham
patent: 3663073 (1972-05-01), Bronson
patent: 3720274 (1973-03-01), McCallum

Affiliated with

Also associated with

Rating

Rock bit bearing system for carrying out thrust does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Rock bit bearing system for carrying out thrust, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rock bit bearing system for carrying out thrust will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-748811