Many bearing manufacturers tend to ignore the cleanliness of bearings during installation, thinking that only conventional raw materials, processes, equipment and other factors affect the accuracy of bearings. In fact, if the cleanliness of bearings does not meet the standard, it is easy to rub and heat during operation, which may lead to the main shaft in severe cases. Early failure; in the process of assembling the bearing by the bearing manufacturer, if there are small particles such as dust entering, it is likely to affect the performance of the spindle, thereby reducing the machining accuracy of the equipment. If the bearing fails, choosing a bearing with higher precision and paying attention to the bearing's plot during the bearing assembly process can alleviate this phenomenon to a certain extent; then what are the reasons for the poor cleanliness during the bearing assembly process? The following two reasons: 1. The quality of the oil used for bearing cleaning is not up to standard, and the cleaning is not clean; 2. The environment during bearing assembly is poor, and small particles enter the magazine; Standardized bearing manufacturers purchase, process, and coat bearing raw materials. Grease, cleaning bearings and other details will pursue excellence, and all aspects of bearing manufacturing will affect the accuracy, life and even the life of the spindle. 37 years of domestic bearing manufacturers can be trusted! The torque is accurate, in order to turn stable!