TIMKEN bearing failure phenomenon: the transmission gear meshing sound, TIMKEN bearings running sound too noisy transmission; transmission issued by the unusual sound of the impact of dry grinding.
Reasons:
Rolling bearing short of oil TIMKEN (TIMKEN bearings, such as the first axis), ball mill round loss, roller pitting, delamination, scars, inside and outside the raceway in the shaft or housing rotation, TIMKEN bearing gap is too big. Remedy: the supplementary motor oil, replace the damaged
TIMKEN bearings;
Gear machining accuracy or improper heat treatment caused the partial roll of the gear or toothed change. Remedy: replace the damaged gear;
Backlash or splined with the gap is too big. Remedy: replacement of damaged synchronizer hub and shaft;
No glitches, and raised the restored tooth surface dressing. Remedy: Repair the tooth surface;
Tooth surface spalling, delamination, defects, wear, or even change gear in the repair of unpaired replacement. Remedy: replace the damaged gear;
The first axis, the second axis bending. Remedy: replace the deformation axis;
Shell TIMKEN bearing hole boring inlayed repair center to make two holes from the change in the two axes are not parallel. Remedy: replace the damaged shell;
Repair after the shift fork bend wrong or shift fork wear unilateral surfacing thick, resulting in the related gear position are not allowed. Remedy: Replace the shift fork;
The second axis fastening nut loose or the other shaft axial positioning inaccurate. Remedy: re-assembly;
The self-locking devices groove ball wear or even self-locking spring fatigue, broken, resulting in the hanging file offside. Remedy: Replace the fork shaft, ball or spring;
Individual tooth fracture. Remedy: replace the damaged gear;
Gear oil, deterioration, the specifications do not meet the requirements or oil debris. Remedy: to supplement or replace the engine oil to meet the requirements.
1. TIMKEN bearing the ability to withstand load much smaller than the same volume of sliding TIMKEN bearings, TIMKEN the bearing radial dimensions. Withstand large loads of occasions and requirements of small radial size of the structure of compact occasions <Crankshaft TIMKEN bearings), the use of sliding TIMKEN bearings;
2. TIMKEN bearing vibration and noise, especially in the use of the latter part is particularly significant, therefore, high precision requirements, without Xu Youzhen moving occasion, TIMKEN bearings difficult to competent, generally used in the sliding TIMKEN bearings better
3.TIMKEN bearings are particularly sensitive to the metal shavings and other foreign matter, TIMKEN the bearing once to enter the foreign body will produce large vibration and noise intermittently, may also cause early damage. , TIMKEN bearings, metal clips and other impurities are also prone to the possibility of early damage. TIMKEN the bearing life there are certain limits even without early damage. The short life of the bearings TIMKEN the short than sliding TIMKEN bearings.
However, TIMKEN bearings and sliding bearings TIMKEN the phase comparison, advantages and disadvantages, each occupy a certain application of occasions, so the two can not fully replace each other, However, due to the outstanding merits of TIMKEN bearings, TIMKEN bearings has developed into a mechanical bearing type, the application of more and more widely.
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