Lubricating grease

Boring or penetrating the earth – With storage means for bit lubricant carried by bit or shaft

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Details

175228, 175371, 175372, 508136, 508144, 508167, 508208, 508539, C10M16900, E21B 1024

Patent

active

06056072&

ABSTRACT:
A heavy-duty lubricating grease is shown which includes a synthetic fluid base and a thickener system. The heavy-duty grease can be used in both rolling element and journal type rock bit bearings to drill in heavy-duty, high temperature applications, such as in the bearing structures of rock bits used to drill hot subterranean formations.

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