The spindle motor oil is divided into 2, 3, 5, 7, 10, 15 and 22 grades according to the kinematic viscosity at 40 ℃;
First of all, a good lubrication effect can reduce the working temperature and prolong the service life of the bearing; therefore, in the operation and use, it should be noted that: at low speed, grease and oil circulation lubrication are used; at high speed, oil mist and oil air lubrication are used. However, when grease lubrication is used, the sealing amount of the spindle motor bearing is usually 10% of the bearing space volume. Never fill it up randomly, because too much grease will aggravate the heating of the spindle motor. For oil circulating lubrication, check the constant temperature oil tank of spindle lubrication every day to see whether the oil quantity is sufficient. If the oil quantity is not enough, add the lubricating oil in time. At the same time, check whether the temperature range of lubricating oil is appropriate.