NSK's thrust roller bearings include products with cylindrical rollers and products with spherical rollers. Although this kind of bearing can only bear axial load, it is suitable for bearing heavy load and high shaft rigidity. Among them, the thrust spherical roller bearing bulges in the middle of the roller and has the function of centering. Therefore, this kind of bearing is not affected by installation error and shaft deflection. The cage with standard configuration is machined brass products; E-type products adopt the cage processed by stamping, which has the characteristics of large load capacity.