As a general rule .Spherical roller bearings have two rows of rollers, a common sphered outer ring raceway and two inner ring raceways inclined at an angle to the bearing axis. The centre point of the sphere in the outer ring raceway is at the bearing axis. Therefore, the bearings are self-aligning and insensitive to misalignment of the shaft relative to the housing, which can be caused, for example, by shaft deflection. Spherical roller bearings are designed to accommodate heavy radial loads, as well as heavy axial loads in both directions. At the same time,to a large extent, performance is influenced by the geometry of the rollers, raceways and cages, the heat treatment, as well as the surface finish of all contact surfaces. The GQZ spherical roller bearings assortment on-line constitutes the basic GQZ assortment and is only part of the total assortment. For applications where the bearings are subjected to unique operating conditions, GQZ can customize bearings to meet the needs of that particular application. For example, bearings for: printing presses, paper mills or coaters in high precision execution very arduous operating conditions：continuous casters，high temperature applications，railway vehicles，and so on. For additional information about application specific spherical roller bearings, please contact the GQZ application engineering service.