Motor bearing friction torque and temperature rise

Motor bearing friction torque of the motor bearing friction torque as the change of load and lubrication conditions. When using grease lubrication, friction torque should be combined with the mixing of the grease resistance. In the case of normal load and sufficient lubrication, friction torque of motor bearing can use the following formula. M = mu xPrxd friction torque / 2 M ( N*mm） Deep groove ball bearing: mu = 0. Pr = radial load (0013 N) D = bearing inside diameter ( mm） Mu = temperature rise of motor bearing rotating friction coefficient, the internal friction and the mixing of the grease resistance will increase the internal temperature of the motor bearing. When bearing started running, its internal temperature rise quickly. As cooling and lubrication, the temperature of the bearing can stabilize. Continuous high temperature lead to bearing clearance decreased, rotary precision and lubrication function drops, and thus the service life of bearing. So when choosing motor bearing, need to fully consider the influence of the temperature rise of bearing life. Above is the author to share content today, want to learn more bearing small knowledge, pay attention to the bearing's official website.