Bearing operation troubleshooting measures

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One bearing fracture defects overload two factors, when the applied load exceeds the material strength limit, resulting in part fracture called overload fracture can also occur in the bearing during operation in of overheating organizations and local burn defects caused defects fracture.big ball bearing
Second, the bearing during operation, and sometimes between the bearing surfaces squeeze into the external hard particles or hard foreign object debris or metal surface bearing furrow-like abrasions these hard foreign objects from entering the bearing lubricating medium internal, with the continuous operation of the bearing, the local friction and heat, could easily lead to local deformation and friction of the friction surface micro-welding phenomenon may even partial melting the final cause occlusal phenomenon.
Generally, the bearing itself does not produce noise. Said the noise is actually bearing, directly or indirectly, with the surrounding structures generate sound effects of vibration.
Due to loading the excitation generated by the number of rolling elements change when a radial load is loaded on a b earing, the number of rolling bodies of the bearing load in operation will slightly change, i.e. :2-3-2-3 ... This caused the offset of the load direction. The resulting vibration is unavoidable, but by axially pre-loading to reduce, and loaded on all the rolling bodies (not for the bearings of the cylindrical roller bearing).
Member waviness in the case of the snug fit between the bearing ring and the bearing or shaft, the bearing ring may be fitted with the adjacent parts of the shape is deformed. If a deformation occurs, in operation, it may lead to vibration. Therefore, the bearing block and the drive shaft for machine processing to the required tolerances is very important.
Local damage, a small portion of the bearing raceways and rolling elements may be damaged due to the operation or installation errors. In operation, the rolling across the damaged bearing member will generate a specific vibration frequency. Vibration frequency analysis can identify the dama ged bearing member. The vibration behavior of the applications in many applications, the sliding bearing stiffness and the stiffness of the surrounding structure is the same. Due to this feature, as long as the correct choice of the bearings (including the pre-load and clearance) in the application configuration, it is possible to reduce the vibration of the application.spindle bearings