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2.齿轮油(1)齿轮润滑特点①齿轮啮合点形成油楔条件差,而且滑动方向和大小急剧变化,所以极易发生磨损、擦伤和胶合;②齿轮啮合点接触压力极高,如双曲线齿轮齿面应力可达1000～3000MPa,故油品极压性必须高;③齿面加工粗糙度高,润滑经常不连续;④齿轮的失效方式有多种,其中大多数与润滑有关.因此,齿轮油必须具备下列性能:①合适的粘度;②良好的热安定性;③良好的抗磨性及耐负荷性;④良好的抗泡性、水分离性和防锈性.
2. Gear oil (1) gear lubrication features ① gear meshing point to form oil wedge conditions are poor, and the sharp changes in the direction and size of the slide, so prone to wear, abrasion and glue; ② gear meshing point contact pressure is extremely high, such as double Curve tooth surface stress up to 1000 ~ 3000MPa, so the extreme pressure oil must be high; ③ tooth surface roughness, lubrication is often discontinuous; ④ gear failure there are a variety of ways, most of which are related to lubrication. , Gear oil must have the following properties: ① appropriate viscosity; ② good thermal stability; ③ good wear resistance and load resistance; ④ good anti-foam, water separation and rust-proof.