1976-02-13
1977-07-12
Peters, Jr., Joseph F.
Cutlery
F16C 1914
Patent
active
040350398
ABSTRACT:
Rock bit assembly comprising a rock bit for drilling holes in the earth's crust mainly consisting of an integral bit body which can be connected to a drive shaft, a number of rotatable cutter cones which, by means of a rolling bearing arrangement, is rotatably connected to said bit body, each of said cutter cones comprising a central shaft or pin forming a part of said rolling bearing arrangement, wherein a cutter cone and bearing arrangement form a unit which is disengageably secured to said bit body by means of the outer race ring of said bearing arrangement.
REFERENCES:
patent: 3572853 (1971-03-01), Coski
Johansson Carl Eric
Kapaan Hendrikus Jan
VAN Nederveen Hans Bertil
Church Gene A.
Peters Jr. Joseph F.
Rosen Daniel M.
SKF Industrial Trading and Development Company B.V.
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