Check the working condition of the machines and complete inspection preparation plan has already been more and more important, especially the bearings for focus, because it is the most important of all the machines of the rotating parts, condition monitoring to prevent maintenance is the important one link in, early detection bearing damage to avoid since the bearing destructions caused by the planned maintenance of equipment during downtime.

Especially in the importance of the machine or the strict environment should be more often inspection of the bearing, at present the market already appear quite a number of systems and equipment to monitor bearing, these instruments have most is based on the vibration measurement.

However, not all the machines are equipped this advanced instruments, in this case, the machine operator or maintenance engineers must on the bearing [fault signal] keep alert, such as noise, temperature and vibration. [listen to], [touch], [watch] are three important factors, the following provide the view can be used as a reference for you.

Listen to:

Use of hearing to identify irregular operation is a very common methods, such as electronic stethoscope by example to find a part of not feel normal noise is experienced operator use. If the bearing is in good condition will be running a low voice SOB, if the hiss of a sharp sound, will sound and other irregular voice, {TodayHot} usually said in a dysfunctional bearing operation condition.

Sharp creak noise may be due to inappropriate caused by the lubrication. Not the appropriate bearing clearance can also cause the metallic sound. Bearing outer ring track on the dent can cause vibration, and cause smooth clear voice, because install if from percussive wounds will also produce noise, the noise will with the bearing the discretion of the speed and different. If there are intermittent noise, it means the rolling a may damage, the sound is happens when the damaged surface is rolling out of date and bearings inside if a pollutant often causes hissing sound, serious bearing damage will produce irregular and great noise.

Bearing damage is by listening to check can feel, but usually at this time has come bearing must not be replaced immediately. So, good method for example USES such as electronic condition monitoring instruments, in advance of the bearing the workings of the rash broken.

Compared with the old method (using a wooden stick or a screwdriver is in bearing box on one end sticking ear), use advanced instruments more accurately estimate of the bearing conditions.