Rolling bearing in use need to pay attention to what aspects

Bearing in use process, rolling bearing manufacturer to remind you also need to pay attention to those aspects? Use when installation should careful not allowed powerful punch, are not allowed to use hammer percussion bearing directly, not allowed by transfer roller pressure. Using appropriate and accurate installation tools use a special tool, as far as possible to avoid use cloth class and short fiber, things like that. Try to keep the imported bearing and the surrounding environment clean, even invisible to the naked eye the smile of the dust into the bearings, also can increase the bearing wear, vibration and noise. To prevent rusting of the bearings directly with the hand take bearing, to fully wash hands sweat, and again after coated with high quality mineral oils, especially in the rainy season and summer to pay attention to rust. SKF agent in some special operating conditions, can obtain a longer than traditional computing by authorized SKF bearing life, especially in the case of light load. These special operating conditions is, when the rolling surface ( Track and rolling piece) Can be separated by a lubricating oil film effectively and the surface of the limit of pollutants may cause damage. In fact, under ideal conditions, the so-called permanent bearing life is possible. Bearing parts in the process of hardening cooling by internal stress of crack according to quenching crack. Of the cause of the crack are: due to quenching heating temperature is too high or cooling, the thermal stress and quality of metal volume change of the organization stress is greater than the fracture strength of steel; The original defects on the surface of the work ( Such as surface microcrack or scratches) Or steel internal defects ( The non-metallic inclusions such as slag, serious, white spots, shrinkage residual, etc. ) When quenching form stress concentration; Serious surface decarbonization and carbide segregation; Parts hardening after tempering lack or not timely temper; The previous process caused by salt stress, cold forging folding, deep turning tool and the oil groove sharp edges, etc. In conclusion, the causes of quenching crack could be one or more of the above factors, the existence of internal stress is the main reason for the formation of quenching cracks. Quenching crack deep and long, fracture surface is flat, the broken section without oxidation color. It is often a longitudinal straight on bearing ring crack or annular crack; On the bearing steel ball shape with s-shaped, T or ring. The characteristics of the quenching crack is crack on both sides without decarburization phenomenon, with obvious difference between crack forging cracks and materials. Due to the internal structure of outer spherical ball bearing and deep groove ball bearing the same series of 6200 and 6300, and IB insert ball bearing unit not only can bear radial load, and can bear a large axial load. At the same time bearing working noise is small.