Antiwear hydraulic oil

Details Antiwear hydraulic oil Antiwear hydraulic oil

C - Chemistry, Metallurgy

10

M

253/81

C10M 141/10 (2006.01)

Patent

CA 1063590

ABSTRACT OF THE DISCLOSURE An improved antiwear hydraulic oil comprises major amounts of a mineral lubricating oil (preferably a hydrocracked oil which has been solvent extracted to improve ultra-violet light stability) and minor amounts of a "secondary" zinc dialkyl dithiophosphate antiwear agent, chelating type and film forming type metal deactivators, a neutral barium salt of a petroleum sulfonate and a succinic acid based rust in- hibitor. The hydraulic oil is especially useful in lubrication of high output (e.g., 100 gallons per minute) bronze-on-steel axial piston pumps. - 1 -

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