Bearing assembly

Details Bearing assembly Bearing assembly

E - Fixed Constructions

21

B

E21B 4/02 (2006.01) E21B 4/00 (2006.01) F16C 33/04 (2006.01)

Patent

CA 2119981

A B S T R A C T A diamond-bearing assembly comprises opposed diamond-bearing surfaces, at least one of which is free of any Group VIII metals such as cobalt. Preferably, each of the surfaces is provided by a surface of a diamond compact, such diamond compact containing substantial diamond-to-diamond bonding, and a second phase which contains silicon in the form of silicon and/or silicon carbide.

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