TIMKEN bearing during the work and failure is often happens, so don't make a fuss. Had problems, judgment and treatment is the key.

1, bearing the temperature too high: in when the machine is running, the installation of the bearing parts are allowed TIMKEN a certain temperature, when the hand over institutions shell, should not feel hot as normal, and indicates that bearing temperature was too high.
Bearing the temperature too high reasons: oil quality requirements or to deteriorate, high viscosity lubricating oil; The machine assembly close (clearance deficiency); Bearing assembly too tightly; The circle in the bearing shaft or shell and rotation; Overload; Bearing maintains a or rolling body chipped, etc.

2, bearing noise: TIMKEN bearing in the work to allow a slight operation noise, if too abnormal noise or noise or knocking, indicates that the bearing is a failure.

TIMKEN bearing produce noise reasons: more complex, 1) is bearing inner and outer surface with wear. Because this in kind of wear, destroy the bearing and shell, bearing and the shaft with relations, lead to axis deviated from the correct position, in the shaft in high-speed motion produce different ring. When bearing fatigue, the metal surface spalling, also can make the bearing radial clearance increase produce different ring. 2) bearing insufficient lubrication, form of dry friction, and bearing, etc, will be broken cause abnormal sound. 3) bearing wear loose after desert, maintains a looseness damage, also can produce abnormal sound of bearing damage. The rolling bearing remove when the examination, but according to bearing damage judgment of the bearing fault and the causes for the damage.

3, groove surface metal peeling: TIMKEN bearings rolling elements and inner and outer groove surface are under the role of periodic pulse loading, which causes the cycles of contact stress. When the stress cycling times up to a certain value, in the rolling body or the inner and outer groove work face only fatigue spalling. If bearing load is too big, can make the fatigue intensified. In addition, bearing installation is not straight, shaft bending, also can produce groove spalling phenomena. Rolling bearing of the tao will reduce shaft of fatigue spalling running accuracy, make the organizations that vibration and noise.

4, bearing burns: burn TIMKEN bearing its groove, rolling body on HuoSe have a return. The cause of the burn is usually insufficient lubrication, lubricating oil quality requirements or metamorphism, and bearing assembly too close, etc.

5, plastic deformation: the tao and roller bearings rolling contact surface appear not uniform pit, explain bearing produce plastic deformation. The reason for this is bearing in a large static load or impact load, the working surface of the local stress more than material yield limit, this generally occur in low speed rotating bearing.

6, the bearing circle crack: housing circle crack reason may be bearing with close, TIMKEN bearing foreign or inner circle, become loose, bearing tolerance a deformation, installation of poor surface processing bearings.

7, maintains a break: its reason is insufficient lubrication, crushing roller, a circle skewed, etc.

8, maintains a metal adhesion in the roller, the reason is probably roller is stuck in maintains a in or insufficient lubrication.

9, seat ring groove severe wear: may is a circle fall into foreign body, lubricating oil shortage or brand lubricant is not right.

TIMKEN bearing after installation, in order to check for installation is correct, to check for operation, small mechanical can by hand rotating confirm whether rotate smoothly. Check for foreign projects, scars and creasing and cause operation, flawed because of installation is bad, the installation seat processing bad and the spin torque, clearance by uneven too small, installation error caused friction seal torque and so on. If there is no exception may start power operation.

Because of the large machine can't manual rotation, so no load immediately after the start to turn off the power, for inertial operation, and examined for vibration and noise, rotating parts if there is contact, and so on, make sure no abnormalities into power after operation.

Dynamic operation, from no load start at low speed, slowly to improve conditions for rated operation. The test run in to check the matters, whether to have abnormal sound, TIMKEN bearing temperature transfer, lubricant leakage and color change etc. In the test run if abnormal, shall be immediately suspend operation, and check the machinery, has the necessary to remove bearing inspection.

TIMKEN import bearings temperature check from shell that general appearance of the gods. But use of oil hole, direct measurement of bearing outer ring temperature, more accurate. Bearing temperature operation began to rise, such as no abnormalities, usually 1 ~ 2 hours after stability. If because of bearing or installation and other bad, bearing temperature will be sharply, the abnormal high temperature. The reason such as lubricants too much, bearing clearance is too small, installation bad, sealing device too friction. High speed rotating occasions, bearing the lubrication to the choice of methods such as the reason is wrong.




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