Gear oil composition

C - Chemistry – Metallurgy – 10 – M

Patent

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Details

C10M 171/02 (2006.01) C10M 111/04 (2006.01) C10M 169/04 (2006.01)

Patent

CA 2616993

The gear oil composition comprises a base oil (A) and another base oil (B), described, below, and at least one species of additive for gear oil, and has a kinematic viscosity of 80 mm2/s or less at 40~C: (A): a mineral based oil and/or hydrocarbon-based synthetic oil having a kinematic viscosity of 3.5 to 7 mm2/s at 100~C, and (B): a mineral-based oil and/or hydrocarbon-based synthetic oil having a kinematic viscosity of 20 to 52 mm2/s at 100~C.

La présente invention concerne une composition d'huile pour engrenages qui comprend une huile de base (A) et une autre huile de base (B), décrites ci-dessous, et au moins une espèce d'additif pour huile d'engrenages, la composition d'huile pour engrenages ayant une viscosité cinématique inférieure ou égale à 80 r.alpha.nvVs à 40 °C. (A) : huile à base minérale et/ou huile synthétique à base d'hydrocarbures ayant une viscosité cinématique comprise entre 3,5 et 7 mm2/s à 100 °C et (B) : huile à base minérale et/ou huile synthétique à base d'hydrocarbures ayant une viscosité cinématique comprise entre 20 et 52 mm2/s à 100 °C.

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