SKF non-standard bearing, installation quality requirements

Once upon a time, the metallurgical quality of SKF bearing material is the main factor affecting the premature failure of the rolling bearing. As metallurgy techniques (such as vacuum degassed bearing steel) progress, raw material quality is improved. Raw material quality factor in non-standard bearing failure analysis share has declined obviously, but it is still one of the main influence factors of bearing failure. Structure design is reasonable and advanced, will have a long bearing life. Bearing manufacturing generally go through forging, heat treatment http ://w ww.skf-nsk.org/contact_us/ SKF Bearing WebSite , cutting, grinding and assembly, and multi-channel processing operations. The rationality of the processing technology, advanced, stability will also affect the service life of bearing. Which affects the quality of finished products bearing heat treatment and grinding process, often has more direct relation with SKF bearing failure. Non-standard bearings of metamorphic layer on the surface of a work in recent years studies have shown that is close to the grinding process and the surface quality of bearing. SKF bearing structure, cooperate, conditions, and, in general, as more as the axis of rotation, so the inner circle need interference fit. Cylindrical hole bearing, multi-purpose press pressure into, or multi-purpose hot charging method. Taper hole, installed directly on the taper shaft, or use the socket installation. When installed on the shell, clearance fit more commonly, outer ring have surplus quantity, usually use the pressure into the press and or have shrink fit method of cooling after installation. Use dry ice as coolant, shrink fit installation, the moisture in the air condenses on the surface of bearing. So, need a good rust prevention measures. Regular inspection or replacement parts, often need to remove the bearing. Usually shaft and bearing box almost all want to continue to use, non-standard bearing also tend to continue to use. Structure design, therefore, want to consider removing SKF bearing, not bearing box and other damaged parts, as well as to the proper removal tool. Remove the interference fit ring, can only add tension on the ring, not by drawing roller ring. About the bearing temperature, average outdoor surface temperature can be predicted by the bearing, if using the oil hole can directly measure temperature, non-standard bearing outer ring bearing is more suitable. In general, the temperature of the bearings with bearing operation began to slowly rise, 1 to 2 hours to reach a steady state. SKF bearing normal temperature due to the heat capacity of the machine, heat dissipating capacity, rotational speed and load. If the appropriate lubrication, installation department, the bearing temperature will rise sharply, appear unusually high temperature, must stop at this moment, take the necessary precautions.