Because TIMKEN bearings not using the product for a long time, so the damage is relatively high frequencies, and a short period of time, to be replaced at a time, so as to avoid unnecessary losses, but under what conditions, bearings need to be replaced, how can we tell if a bearing is available? Mainly bearing damage, mechanical performance, importance, operating conditions, until the next maintenance period and decide. If you have the following defects you can no longer use, new bearings must be replaced. Inner ring, outer ring, rolling elements, cages on any one have crack or gap.
1, rings, rolling elements on any one broken.
2, scroll bars, scroll bars, road surface, retaining edge has a marked card injuries on the body.
3 notable or rivets, cage wear significantly relaxed.
4 surface, rolling, rolling road on the rust, is injured.
5, roll on the road surface, rolling there is serious pressure marks and traces.
6, the diameter of the inner ring, or the outer ring outside diameter surface creep is evident.
7, discoloration caused by the heat of the obvious.
8, into grease bearings, seals or shields damage apparent.
TIMKEN bearing should it be specific judgment methods of repair, that bearing has been fully utilized and the near destruction of a particular occurrence of a judge is as follows:
1) using the bearing condition monitoring apparatus
Using spectrometer or SPM or I-ID-1 such as iron-bearing condition monitoring apparatus to determine the bearing of working condition of work and decisions when the bearings should be repair, this is the most convenient and more reliable method.
For example, when you use the HD-1 instrument, and when the pointer from warning area close to the danger zone, and take measures, improved lubrication pointer does not return, will be able to identify the TIMKEN bearing their problems, when you can take advantage of not entering the danger zone, bearing repair. How far from the danger zone began to be repaired, can be adjusted by the experience.
Using this instrument, can take full advantage of bearing potential, bearing to be repaired in a timely manner, and avoid failure occurs, are safe and economical.
2) using simple tools to listen
Situations where, in the absence of the above-mentioned instruments, the operator can be armed with rods or tools such as wrenches subject closest to the bearing shell of machine parts, ears and ashamed to tool by tool listens on from the bearing operation, using converted medical stethoscope can also, of course. Normal bearing operation should be even, smooth and not harsh voice, TIMKEN bearings instead of the normal operation of a wide range of intermittent, or harsh sound of impact. First to get used to normal bearing operation, and TIMKEN bearings capable of grasping the judgement is not normal operation, and accumulate experience through practice, and further analysis of what kind of abnormal sound of bearings correspond to what is not normal. Categories of bearing abnormal sound a lot difficult explained, is largely dependent on experience.



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