Diamond bearing assembly

Details Diamond bearing assembly Diamond bearing assembly

F - Mech Eng,Light,Heat,Weapons

16

C

F16C 32/00 (2006.01) E21B 4/00 (2006.01) F16C 17/04 (2006.01) F16C 33/26 (2006.01)

Patent

CA 2109335

ABSTRACT The invention concerns a diamond thrust bearing assembly for a downhole motor. The assembly (10) includes at least one set of opposing bearing rings (20, 22), each of which has an annular support element (24, 30) and a plurality of PCD compacts (48, 62) carried in circumferentially spaced relationship by the support element. The PCD compacts present opposing bearing surfaces (52, 66) with the bearing surfaces (66) of the compacts of one bearing ring in each set being circumferentially longer than the bearing surfaces (52) of the compacts of the other bearing ring of the set.

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