Choose appropriate quenching media seems to be especially important, it had decided the TIMKEN bearings components after quenching the organization and performance, usually quenching media are solid, liquid and gas three, press bearing hardened medium change happened into found found change and not occur forms of change.

Bearing workpiece in heat treatment furnace heated to completely in austenitic change, to acquire need group weaving and performance, need to undertake quenching process. Cooling of workpiece to get the martensite organization, the cooling speed must be greater than the critical cooling rate, but cold too quickly, to make the work volume contraction and organization change drastically, cause a lot of stress. So in obtain martensitic conditions "F", should make the cooling speed as low as possible.

Right after the repair of one-way bearing performance and new bearing the same. The clearance, and other precision parameters are to the requirements of the new TIMKEN bearing, important is to know and identification to choose the right degree of damage repair plan. Such as surface finishing grinding processing can remove some slight loss, but can't remove the real fatigue layer, can't remove the depression caused by debris or wear. Therefore, if only for the bearing do surface finishing grinding processing, generally not suitable for serious damage of bearing. And if after a thorough remanufacturing repair technology, the bearing fatigue layer is thoroughly, and rolling body also to completely change, maintains a comprehensive and so on also want to arrange, such bearing can achieve new bearing performance requirements.

Once TIMKEN bearing injuries, must go through a rigorous testing process to determine whether the damage of bearing be repaired. To fix bearing must be fully cleaning and very strict comprehensive detection. First is testing bearing as long as damage, such as whether there is crack, flake of overheating and color, the damage of bearing these problems may not be able to repair and have to be scrapped.

Bearing a turn, inner ring and outer ring roll the pavement, because roller is rolling contact, and running trajectory for dark side, running trajectory attached to the groove surface does not belong to abnormal, from this change can be informed load conditions, so in dismantling the
TIMKEN bearing, please pay special attention and observe the groove running track. If watch carefully running trajectory of words, will be that only burden radial load, to bear large axial load, and inherit torque load, or in the case with extreme bearing rigid not equal.

1, one-way bearing clearance should be appropriate, too much impact, too small is bad lubrication, may burn watts.

2, improve the lubrication quality, control oil pressure, temperature and flow rate, strengthen the oil filtration.

3 and one-way bearing and shaft neck the surface quality and the geometrical shape should strictly guaranteed.

4, adopt appropriate demarcated fuel and oil.

5, control the temperature of the diesel engine state, in overheating too cold to work is unfavorable. Cold day, diesel engine should be preheated before starting first, with the hand crank make oil into the rolling friction surface.




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