Rock drill oil
AssigneeChevron U.S.A. Inc.
InventorsMARK OKAZAKI, ALLEN HEE
Life of this patent
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Abstract
Provided is a lubricating oil composition suitable for use in rotary pneumatic and reciprocating tools, comprising a Fischer-Tropsch base oil, a friction modifier based on synthetic ester and a sulfurized extreme pressure agent. The present lubricating oil composition has superior wear, friction and extreme pressure characteristics.
Claims22
A rotary pneumatic or reciprocating tool comprising a lubricating oil, wherein the lubricating oil comprises a Fischer-Tropsch base oil, a friction modifier based on a synthetic ester, and a sulfurized extreme pressure agent.
A system of enclosed industrial gears, comprising a lubricant, wherein the lubricant comprises a Fischer-Tropsch base oil, a friction modifier based on a synthetic ester, and a sulfurized extreme pressure agent.
Dependencies are inferred from the claim text.