Definition: we usually put the gear oil for lubricating oil transmission, rear axle gear transmission mechanism is called gear oil. The gear axis position and the tooth shape is different, there is a big difference between force and relative slip velocity in the meshing part of the contact, gear oil therefore requires the use of different types and varieties. Gear oil classification:The common gear oil at 100 degrees of viscosity is divided into 20, 26, 30, 3 grade. Hypoid gear oil by 100 degrees of kinematic viscosity divided into No. 18, No. 22, No. 26, No. 28, 4 grade. Now our country divided into three types: general vehicle gear oil (CLC), medium load vehicle gear oil (CLD), heavy-duty vehicle gear oil (CLE). Classification of gear oil type:Classification of gear oil, according to the American Petroleum Institute (API) standard, can be divided into GL-1, GL-2, GL-3, GL-4, GL-5, GL-6 and other quality levels, wheel oil packaging has quality level identifier corresponding. Viscosity grade gear oil:Gear oil at 100 ℃ kinematic viscosity and apparent viscosity of 150000mPa.s highest use temperature regulation, divided into 75W, 75W/90, 80W/90, 85W/90, 90, and 140 85W/140 seven viscosity grades (grades). 0 seven viscosity grades (grades). |