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One-way bearing of normal operation

by:Waxing     2020-10-17
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 lubrication, the installation of appropriate TIMKEN bearing temperature will rise sharply, appear unusually high temperature, must stop at this moment, take the necessary precautions. Dynamic operation, from the beginning of no-load speed, slowly progress to the rated operating conditions. Test run to check the items, whether there is abnormal sound, a one-way bearing temperature change, smooth agent leaked or discoloration, and so on. If discovery is unusual, should immediately stop, check machine, when it is necessary to remove the bearing inspection. One-way bearing assembly has been completed, in order to check the device correctly, to stop check. Small mechanical energy enough hand rotation, to confirm whether it can rotate smoothly. Check project has formed as a result of foreign bodies, scars, indentation seized up, due to the bad device, device processing torque instability as a result of the bad, because the clearance is too small, installation error, seal friction and provoked torque is too big, and so on. If there is no abnormal can start power operation. TIMKEN bearing temperature measured on a regular basis can use 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. Under normal circumstances, TIMKEN bearings in just after the grease or lubricant will be a natural temperature rise and the last one to two days. Large machinery from manual rotation, so the no-load start immediately after cut off the power, machine idle, for vibration, noise, rotating parts can have contact and so on, confirmed after no abnormalities, into power operation. Bearing the examination such as the rotation of the sound with a stethoscope, a strong metal noise, different sound and irregular clarify abnormal sound, etc. Its reason is smooth, shaft or precision bearing, bearing damage, foreign bodies, intrusion, etc. Large ball bearings, grease is smooth, in particular environmental conditions, such as, low temperature in winter, there will be a roll-off problem. Ordinary, even if the attack roll-off sound, the temperature of the bearing will not rise, will not affect the fatigue life, smooth life, normal use. One-way bearing temperature, ordinary can be based on speculation and the outside of the bearing temperature. But used oil hole directly measure the temperature of the bearing outer ring more accurate. Bearing temperature, from the beginning of operation gradually rise, usually 1 ~ 2 hours after the temperature stability. If the poor bearing assembly, the temperature will rise sharply, abnormal high temperature. For reasons such as smooth agent device, bearing clearance is too small, too much bad, seal installation too much friction, etc. High-speed rotation, the choice of the ways of bearing structure, smooth error, etc. As well as the reason. With high temperature often said bearing is in abnormal situation. High temperature also harmful to the bearing lubricant. Sometimes can be classified to the TIMKEN TIMKEN bearing overheating 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 one-way bearings include: lubrication inadequate or excessive lubrication, the lubricant. Contains impurities, heavy load, bearing damage, clearance, high friction and oil seal and so on.
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