This oil thereby reaches the various bearings that support rotating shafts and the different moving parts in the engine. It covers the surfaces of the moving parts to prevent metalto-metal contact and undue wear of the parts.

• 被输送到发动机的曲轴和各种运动零件的每个轴承上。润滑油在运动零件表面形成油膜,以防止金属零件表面直接接触以及零件的过度磨损。