Stručni rad

Impact of viscosity modifiers on formulation of universal gear tractor oil (UTTO) SAE 10W-30

Tonća Ćaleta Prolić ; INA maziva d.o.o.
Miroslav Felja ; INA maziva d.o.o.
Renata Petek Grahovac ; INA maziva d.o.o.
Anđelko Lepušić ; INA maziva d.o.o.

Sažetak

Universal tractor transmission oil (UTTO) is used for the lubrication of gear transmissions, wet brakes and hydraulic systems for agricultural and construction machinery. The trend in the development of UTTO lubricants focuses on multigrade formulations with the high viscosity index oils, which enables improved performance at various working temperatures. Lower viscosity grade SAE 10W-30 allow the better pumpability at low temperatures and improved durability at high temperatures as well as better protection against wear that, indirectly, causes the fuel savings and costs reduction. In this work different types of viscosity modifiers in UTTO lubricant were investigated. The final formulation of the UTTO lubricant is tested by implementation of field tests in tractor in order to determine the optimal life time of lubricants aiming the possibility of its extension.

Ključne riječi

UTTO; multigrade lubricants; viscosity modifiers; testing

Hrčak ID:

147317

URI

https://hrcak.srce.hr/147317

Datum izdavanja:

30.9.2015.

Podaci na drugim jezicima: hrvatski

Posjeta: 1.516 *