Calculation and analysis of high-speed precision spindle bearing thermal properties

Bearing frictional torque, the higher the speed, the frictional heat generated by the more, the higher the temperature rise of the bearing, the bearing for the high speed bearing (dn values in the range of 2,000,000) the use of oil-air lubrication can be well suppressed bearings the temperature rise. For the friction torque and friction heat precision spindle bearings, the greater torque, bearing fever mainly related with the friction torque. Frictional heat generated by the more. According to the formula derived Palmgren, the bearing friction torque has two parts: frictional torque occurring lubricant viscosity and friction torque and speed independent of load occurs.