The advantages and disadvantages of grease and oil lubrication

The choice of lubricant bearing lubrication method is roughly divided into two kinds of grease lubrication and oil lubrication. In order to give full play to the function of bearing, important is according to the conditions of use and purpose, the lubrication method. The following table lists the advantages and disadvantages of grease and oil lubrication, sealing device can simplify the structure project of lubricating oil lubrication grease collar a little more complicated, pay attention to the speed allowed on maintenance speed - 65% oil 80% compared with grease lubrication, even a high speed can also use the cooling effect of cooling effect is not able to heat coming from ( Cycle to oil method) Lubricant illiquid some good lubricant change slightly more complicated relatively easy dust filtration difficult lubricant leakage pollution leakage less pollution due to oil spill, not suitable for fear of contamination of part 1) Grease lubrication, grease is composed of base oil, thickener and additive in lubricant. Should choose to use condition is very suitable for bearing grease. Even the same grease, because the trademark is different, also there will be a very big difference on performance. So in the choice must pay attention to. 2) Oil: oil lubrication methods have oil bath, oil drip lubrication, splash lubrication, circulating lubrication method, spray lubrication method, spray lubrication and oil lubrication, compared with grease lubrication, with high speed high temperature applications. Especially need to send out quantity of heat, oil lubrication is more appropriate. In the case of oil lubrication, considering the bearing operating temperature, it is important for selecting the appropriate viscosity lubricating oil. In general, the faster the speed, the more oil with low viscosity, the greater the load, the more you want to use high viscosity of lubricating oil. In the table below shows the bearing the relationship between the form and the lubrication necessary viscosity: form of bearing lubricating oil viscosity ball bearings, cylindrical roller bearing was 13 / s above tapered roller bearings, automatic self-aligning roller bearing more than 20 was/s thrust self-aligning bearing 32 was automatically/s above the previous: bearing abnormal phenomenon in the next article: stainless steel bearing processing: stainless steel processing and key construction technology