Bearing on the state of damage

Machine shaft parts, especially the spindle , usually with rolling bearings or sliding bearings assembled into one , and a high speed of rotation , and sometimes it will produce a very high heat. This phenomenon if not removed , will cause angular contact ball bearings overheating , and to the corresponding parts of the machine to produce thermal deformation temperature , causes severe spindle and tailstock is not high , which not only affects the accuracy and precision machine itself and bearing will burn .
In general, if used correctly KOYO bearings can be used to reach far fatigue life. Accidental injury prematurely but there can not be resistant in case of use This early damage and fatigue life relative , a failure or an accident is called the quality of use limits. Multiple causes the installation , pay attention to the lubrication on the use , invading foreign body from the outside , for the study of the shaft , the thermal paired tapered bearing effects of inadequate housing and so on.
Bearing on the state of damage , such as: angular contact ball bearing rings , ribs cards injury, may be considered as a reason for lack of lubricant , not suitable for the oil discharge structure defects, the intrusion of foreign bodies , bearing misalignment , shaft deflection is too large , there will be overlap of these reasons .
Thus , the survey only bearing damage , it is difficult to know the real cause of injury. However , if you know the use of machinery, conditions of use, the bearing structure around the bearing exporter bearing , to understand the situation before and after the accident , combined with state of the bearing damage , and several reasons, we can prevent similar incidents from recurring.
Bearings are available to determine , mainly on account of the extent of damage KOYO bearings , mechanical properties, the importance of operating conditions to be determined during the next overhaul . If you have the following defects can no longer use , must be replaced with new angular contact ball bearings. Inner ring, outer ring, rolling elements of any cracks or gaps on the holder .
1 , rings , there is a fracture of any body roll .
2, there is a significant injury on the rolling pavement card , ribs , rolling .
3 , cage or wear significantly rivet significant relaxation .
4 , raceway , there is rust on the rolling body injury .
5 , raceway , and playing serious indentation marks on rolling .
6 , the inner diameter surface or outer diameter surface creep significantly .
7 , discoloration caused by heat significantly .
8 , grease sealed bearings , seals or dust cover damaged significantly .