Bearing NSK 22215 EAE4

NSK 22215EAE4 ANALOGUES : 53515 Spherical roller bearing with cylindrical bore. EA suffix - stamped steel cage and bearing classified as NSKHPSTM bearing; such bearings have particularly high bearing capacity, high ultimate speeds and are very functional in high temperature conditions up to 200 ° C. Suffix E4 - an oil groove and lubrication holes are provided on the outer ring. Spherical roller bearings have barrel-shaped rollers between the inner ring, which has two raceways, and the outer ring, which has one spherical raceway. Since the center of curvature of the raceway surface of the outer ring coincides with the axis of the bearing, they are self-aligning similarly to self-aligning ball bearings. Therefore, if there is a deflection of the shaft or housing or the displacement of their axes, it is automatically corrected, therefore, excessive force is not applied to the bearings. Spherical roller bearings can withstand not only large radial loads, but also some axial loads in any direction. They have excellent radial load bearing capacity and are suitable for use in places with heavy or shock loads. The thermal reference speed is the rotational speed at which equilibrium is reached between the heat generated by the bearing and the heat flow emitted through the shaft and housing under the reference conditions defined by ISO 15312. It is one among various criteria showing the suitability for operation at high speed. The below reference conditions are defined by ISO 15312.-Outer-ring fixed, Inner-ring rotating-Mean ambient temperature 20 degrees C-Mean bearing temperature at the outer ring 70 degrees C-Load on radial bearings 0.05 Cor-Oil bath lubrication-Lubricant ISO VG32 (radial bearings)-Normal bearing internal clearance