Cylindrical roller bearing is a kind of modern machinery and equipment vital components

Bearing components are fixed and reduce the coefficient of friction in the mechanical load transmission process. When the other parts in the movement of the shaft relative to each other tapered roller bearings during the power transmission to reduce friction coefficient and to maintain a fixed position of the shaft center parts . Bearing is a kind of modern machinery and equipment vital components. Its main function is to support the rotating body for reducing the mechanical transmission device of the mechanical load during the friction coefficient .
China is one of the earliest countries in the world in our ancient invention Rolling constructed on the axle bearings has long been documented . Bearing is an important foundation for all types of machinery and equipment spare parts to its accuracy, performance , life and reliability of the host precision , performance , longevity and reliability play a decisive role . Bearing in mechanical products are precision products requires not thrust ball bearing only a comprehensive support mathematics , theoretical physics and many other disciplines and require materials science , heat treatment technology, precision machining and measurement technology , digital technology and efficient numerical methods and powerful computer technology and many other So bearing disciplines to serve on behalf of the National Science and Technology is a powerful product . Development momentum of China's manufacturing industry, a strong bearing on the smooth bearing steel market will bring positive effects to the good

Bearing structure and conditions of service

Generally speaking , the proper use of the rolling bearing , the fatigue life can be achieved . But early damage if an accident occurs , you can no longer use . And fatigue different life, this early damage , known as failure or accident. Multiple causes of installation , use, lubrication on the ill- considered , from the intrusion of foreign bodies or external to the shaft , bearing insufficient research .
Thus , the survey only bearing damage , it is difficult to know the real cause of injury. However , if you fully understand the use of the bearing of the machine, the foundation conditions and its peripheral structure, clarify the situation before and after the failure  occurred , combined with damage of bearings and analyze a variety of related reasons , we can prevent similar failures again. Bearing Injury representative and countermeasures.
Even the use of ultra- modern manufacturing techniques and processing the highest bearing parts . Observed with thrust ball bearing pretension load change reading method . Preload method has its negative aspects , is well known . The appearance of their work will always be kept in the appropriate parts of the micrometer head against the end face of the bearing or shaft .
1 . Bearing structure and conditions of service . Different structures for different conditions of service ; different auto parts bearing on the structure of their process vary , it affects  their quality. Therefore, we should develop new structured products to suit different bearings for rolling mills conditions of service and may indicate its appropriate service conditions or performance on the rolling bearing instructions to facilitate customer choice .
2 . Strengthen technology research, improve the processing technology to improve processing quality and reduce the possibility of defects in the processing . If the heat treatment , a greater variety of inner and outer rings , try to use the lower limit of the quenching temperature , holding time to adapt , to improve the alloy concentration , increasing the fracture strength of martensite , and choose a higher return under the premise of quality assurance ignition temperature to enhance the toughness of the workpiece.
3 . Improved processing means of monitoring and promoting quality improvement process . Such as improved monitoring of the flow path curvature position , improve the overall performance of the car bearing assembly after Rolling improve working conditions .