Check the angular contact ball bearing operating temperature and some matters needing attention

Usually TIMKEN bearing temperature as bearing operation began to rise slowly, 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 temperature will rise sharply angular contact ball bearing, appear unusually high temperature, must stop at this moment, take the necessary precautions. Using thermal device can monitor the bearing temperature at any time, and realize e. automatic alarm when the temperature exceeds or stop to prevent the shaft accidents. With high temperature often said TIMKEN 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 the angular contact ball bearing temperature is necessary, 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. The importance of bearing, means that when the damage cause of equipment downtime, so this type of TIMKEN bearings shall be mounted to the best temperature detector. The best condition in order to better play to bearing, bearing grease choice is good or not directly related to the stable operation of the equipment. The selection of the bearing grease must consider from the following aspects: 1. Rust resistance corrosion inhibitor is best can not dissolve in water. Grease should have good adhesion, use within the angular contact ball bearing grease must have antirust effect. And a layer of oil film can be formed in the steel surface. 2. Mechanical stability to leak. During normal operation, oil will become soft in machining. Grease can by the bearing to the bearings. If the mechanical stability of the oil is insufficient, operation process, can make the structure of the soap grease mechanical disruption of oil was damage, and loss of lubrication. 3. Oil seal bearing operation process, the oil seal is necessary maintenance angular contact ball bearing and lubricant from the barrier of external contamination. Regardless of debris or moisture can penetrate bearings, in case of causing damage to it. Have a bearing on the correct device goes is the longest service life of the important factors. At the same time, must pay attention to the purity of the bearing, bearing of correctness and choose the proper installation and maintenance tools. In addition, the bearings must prevent contamination by pollutants and moisture, and ensure the right device and lubrication. Therefore, the design of the bearing arrangement, the condition of the oil seal, type of lubricants and lubrication cycle, and special care are the same and important role. 4. Mixed oil if two incompatible oil mixture, never can't compatible to the oil to mix. Usually will soften its consistency, finally may be caused by oil easy to loss of angular contact ball bearing damage. If you don't know which one TIMKEN bearing used grease, is required to completely remove bearing inside and outside of the old oil, can add new grease. 5. The classification of the grease lubrication grease consistency and ability is operating under a certain temperature under the influence of working temperature of angular contact ball bearing must choose under the same temperature has the correct consistency and good lubrication effect of oils and fats. Oil is made of different working temperature range can be roughly divided into low, medium temperature and high temperature with grease. At the same time, mainly according to the temperature and the working conditions to distinguish: oil can be classified according to its allowable working temperature. There is a certain type of oils and fats known as resistance to squeeze or extrusion and add molybdenum disulfide, at the same time, among them with additives to enhance the strength of the lubricating oil film. 6. Choose grease the important factor in choosing a grease, if the wrong choice grease all preventive measures of TIMKEN bearing is useless. Base oil viscosity in the working temperature is it is important to be able to provide adequate lubrication effect of viscosity is mainly affected by temperature, the temperature rise and fall, when the temperature drop is increased. Therefore, it is necessary to know the working temperature of base oil viscosity. Machinery manufacturers are usually specified use some grease, however most of the standard grease applicable range is very wide. Such as vibration and the direction of the main shaft is horizontal or vertical. Cooling condition; The sealing effect; Peripheral environment. The following important factors is that the choice of grease: mechanical type; Angular contact ball bearing type and size; Working temperature; Working load; Speed range; Working condition.