Extend the service life of rolling bearings of the preventive measures

In the process of using rolling bearing due to improper operation, inadequate lubrication, rust and corrosion, and some other factors such as current, external material, the service life of the eccentricity of the bearing. So it is necessary in the process of using the bearing to bearing have sufficient knowledge and understanding of preventive measures. Bearing operation is not standard: bearing installation, cage deformation caused by the improper operation or remove may or defect prevention measures: with proper operation, installation and removal tools, and use Beijing driver quality goods bearing. Bearing rust and corrosion: contact with water may cause corrosion damage of bearing elements and rust. Bearing current: bearing rotates the electricity may result in a groove or notch. Eccentric bearing, eccentricity, inclination, or excessive load may result in geometrical stress concentration or surface spalling precautions: use precision bearing seat and shoulder using thermal device can monitor the working temperature of rolling bearing, and implement e. automatic alarm when the temperature exceeds or stop to prevent the shaft accidents. With high temperature often said bearing is in abnormal situation. High temperature also harmful to the bearing lubricant. Sometimes overheated bearings can be classified to the bearing lubricant. If the bearing temperature for a long time even the transfer of more than 125 ℃ lower bearing life. The causes of high temperature bearing include: lubrication inadequate or excessive lubrication, the lubricant. Contains impurities, heavy load, bearing damage, clearance, high friction and oil seal and so on. So the continuous monitoring of rolling bearing temperature is necessary, bearing whether measured bearing itself or other important parts. If it is on the basis of the operating conditions, the temperature change of any fault has occurred. Regular bearing temperature measurement by using a thermometer, digital thermometer, for example, can accurate bearing temperature measurement and display by ℃ or Fahrenheit units. Bearing temperature, generally have a bearing on the surface of the outdoor temperature can be predicted, if using the oil hole can directly measure temperature of bearing outer ring and bearing is more appropriate. Generally, the temperature of the bearings with bearing operation began to slowly rise, 1 - After 2 hours to reach steady state. The normal temperature of bearing for machine heat capacity, heat dissipating capacity, rotational speed and load. If the appropriate lubrication, installation department, the bearing temperature will rise sharply, appear unusually high temperature, must stop at this moment, take the necessary precautions. Another lubricating way, oil mist lubrication bearing, it is a kind of minimal quantities of lubricant, simple I mean with very small amounts of oil to satisfy the requirement of the rolling bearing lubrication. Oil mist lubrication is to become oil mist lubricating oil in the oil mist generator, through the oil mist lubrication of bearings. Due to the oil mist in the rolling bearing working surface condensation oil drops, actually kept rolling bearing thin oil lubrication condition. Using the lubrication method should be paid attention to the following two points: 1. Oil viscosity choice generally should not be higher than 340 mm/s ( 40 degrees) Because of the high viscosity will be short of atomization effect. 2. Lubrication of oil mist may partially with the degradation of air, will pollute the environment. Oil and gas separator if necessary to collect the oil mist, or ventilation is used to eliminate waste. When bearing roller linear speed is high, oil mist lubrication, is often used in order to avoid other lubrication methods due to too much oil, oil increased the internal friction increases the working temperature of rolling bearing. General oil mist pressure is about 0. 05-0. 1mbar。