The type of spherical roller bearing inner diameter of 1180 (mm) 1540 (mm) diameter thickness of 272 weight 400 retainer materials and carbon steel using rolling body row number double raceway type spherical raceway samples or spot spot of the bearings in the spherical roller bearing rolling a spherical roller between the outer ring and the inner ring raceway of double use of engineering machinery according to the characteristics of high temperature. The internal structure is divided into R, RH, RHA and SR four types of the outer ring raceway uniform circular arc center and bearing center, with self-aligning performance, it can automatically adjust the axial deflection caused by the shaft or housing or not is not concentric can bear radial load and axial load. Especially the radial load capacity, and load and impact load of tapered bore bearing by using fasteners or the ejector sleeve on the shaft assembly has the following two kinds of cone (taper): 1:30 (auxiliary code: K30) and 240... And 241 series 1.12 (auxiliary code: K) using... And other series of the outer ring can be arranged on the oil hole and oil groove and the positioning pin hole (a). The inner ring can be provided with protection frame main oil hole and oil groove: copper alloy cutting protection frame, copper coin protection frame, pin protective rack, synthetic resin forming protection frame main purpose: paper machine, speed reducer, railway vehicle axle, rolling mill gear box seat, rolling mill, crusher road vibrating screen printing machinery, woodworking machinery, all kinds of industrial reducer and vertical self-aligning bearing seat