Slideway Lubricants
AssigneeAfton Chemical Corporation
InventorsPaul Norris, Ralph Lumby
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Abstract
The present disclosure relates to lubricating oil compositions, and in particular, lubricating oil compositions for slideway applications, additive compositions for the slideway lubricants, and methods of lubricating a machine part, such as a slideway with the lubricating oil compositions. In one aspect, the lubricating oil compositions have a composition that provides both good friction performance and good separability from metal working fluids at the same time.
Claims28
A slideway lubricant composition exhibiting good friction performance and good separability from metal working fluid at the same time, the slideway lubricant composition including
- a major amount of a base lubricating oil;
- a phosphorous containing friction modifier providing about 0.01 to about 1 weight percent of a hydrocarbyl phosphonate monoester to the slideway lubricant composition;
- the hydrocarbyl phosphonate monoester including a C1 to C4 alkyl group in the monoester moiety and 12 to 30 carbon atoms in the hydrocarbyl moiety;
A method of lubricating a slideway component, the method comprising:
- applying a lubricant composition to the slideway component and operating the slideway;
- wherein the lubricant composition includes a major amount of a base lubricating oil and a phosphorous containing friction modifier providing about 0.01 to about 1 weight percent of a hydrocarbyl phosphonate monoester to the slideway lubricant composition;
- and
- the hydrocarbyl phosphonate monoester including a C1 to C4 alkyl group in the monoester moiety and 12 to 30 carbon atoms in the hydrocarbyl moiety.
Dependencies are inferred from the claim text.