What is the difference between gear oil models 220 and 320?
1 Answers
Differences between gear oil models 220 and 320: 1. The 220 model is slightly thinner than the 320 model, while the 320 model is thicker than the 220 model. Their specific parameter indicators are slightly different. The kinematic viscosity (100°C)/(mm2/s) for the 220 model is 198~<242, while for the 320 model it is 288~<352. Other parameters are basically the same. In use, it is essential to select the appropriate oil according to the equipment's instructions; they cannot be used interchangeably. 2. The 220 and 320 gear oils refer to medium-load gear oil CKC, representing medium extreme pressure gear oil, generally used in the gearboxes, reducers, turbines, and gearboxes of machinery and equipment. The characteristics of this series of lubricating oils include good load-carrying capacity and anti-scuffing properties, excellent thermal and oxidation stability, good adhesion, and they are free of solvents, asphalt, heavy metals, and chlorine, meeting environmental protection requirements.