The cause of the needle bearing premature aging and rust removal

Jiaxing bearing manufacturing co. , LTD. , needle roller bearing premature aging with tight reasons, poor lubrication, strong vibration, material fatigue, pollution, corrosion, etc. Cooperate with tight ball and slide clearance is too small, is the cause of torque, friction increases, the bearing operating temperature is too high. When installing so will try to adjust the right radial clearance of the bearing. Needle roller bearing lubrication is not good because of the serious lack of lubrication, so the running time, according to the motor load condition, environment temperature and the stand or fall of the grease four factors, to determine the bearing oil compensating time; Strong vibration because of motor iron core has an intense vibration fault caused by a bearing. Appear this kind of circumstance is our new bearing to replace the same model. Material fatigue due to metal fatigue, bearing raceway and the ball off the surface of the debris fall in the grease, led to a big noise. So we should consider the normal bearing material fatigue, change is the new bearing; Check the raceway and ball whether appear on the surface of the red, brown spot - Pitting corrosion. If the needle roller bearing surface is rust, first bearing surface cleaning, cleaning must be rust in accordance with the physical nature of the surface and the condition, select the appropriate method. Is generally more solvent cleaning, chemical cleaning and mechanical cleaning method. Available filter after clean dry compressed air blow dry, or in 120 ~ 170 degrees Celsius dryer for drying, also can use clean cloth to wipe dry. Drawn cup needle roller bearing by soaking in antirust oil, make its surface adhesion on a layer of anti-rust oil. The temperature of the oil film thickness can be controlled by anti-rust oil or viscosity to achieve. Production personnel at the time of bearing assembly shall bring gloves, gloves, or use the special tool take bearing, don't contact bearing surface by hand. Sources: the list /? 3 _1. 超文本标记语言