Rock bit bearing material

Bearings – Rotary bearing – Roller drill bit

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384912, F16C 3306

Patent

active

055271138

ABSTRACT:
The use of a sintered compact of a copper base alloy, a transition metal, a metalloid and a strengthener for bearing surfaces formed between roller cutter cones of sealed bearing rock bits.

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"Pfinodal, The Cost Saving High Performance Copper Alloy Strip" (1988, Ametek, Specialty Metal Products Division, Wallingford, Connecticut), Form 4M288.
"Pfinodal, The Cost Saving High Performance Copper Alloy Strip, Technical Data" (1988, Ametek, Specialty Metal Products Division, Wallingford, Connecticut), form 3M88F.

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