Four cylindrical roller bearings from the start with what troubleshooting

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1 as to hear the noise emitted by the import parts, first of all, it is important to find the location of noise occurs. There are many moving parts that may produce noise, it may be some of the rotating member and the non-rotating me mber contact has occurred. If the confirmation is the four cylindrical roller bearings in the noise, may be damaged and need to be replaced.
2 because the former leading to both sides of the VALID similar working conditions, even if only bad one, also recommended to replace them in pairs.
3. Sensitive imports, in any case, need to adopt the right method and the right tools. Bearing parts can not be damaged in storage, transportation and installation process. Requires a large amount of pressure to press-fitting, and therefore require a special tool. Be sure to refer to the manual.bearing factory in china
The installation should be in a clean environment, small particles enter will shorten the life of four cylindrical roller bearings. It is very important to maintain a clean environment in the replacement. Does not allow hitting them with a hammer, be careful not to fall to the ground (or similar i mproper handling). Before installation, the response to the status of the shaft and the seat to be checked, even tiny wear will result with the poor, thereby causing damage.
Metallurgical quality of the imported bearing materials used to affect the main factors of the Rolling early failure. With the advances in metallurgical technologies (such as bearing steel vacuum degassing), to improve the quality of the raw materials. The proportion of the raw material quality factors in bearing failure analysis has decreased significantly, but it is still one of the main factors affecting the four cylindrical roller bearing failure. The selection is still bearing failure analysis must consider the factors properly.
The main task of the imported bearing failure analysis, is based on a lot of background material, analysis of data, and failure modes to identify the main factors causing bearing failure, in order to suggest improvements targeted measures, to extend the service per iod of four cylindrical roller bearings avoid bearing unexpected early failure occurs.