Thrust face bearing structure for rolling cutter drill bit
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United States of America Patent
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-
Apr 6, 1982
Grant Date -
N/A
app pub date -
Oct 17, 1980
filing date -
Oct 17, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A rolling cutter drill bit is disclosed having an improved thrust face bearing structure which utilizes alternating segments of at least two different bearing metals. The composite thrust face bearing structure disclosed has a first metal selected for a low temperature operation, and at least one additional metal selected for high temperature operation.
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