21317 E Type High Load Spherical Roller Bearing

E Type Spherical Roller Bearing is equipped with two window-type stamped steel retainers,  an inner ring without rims and a floating guide ring guided by an inner ring (d ≤ 65mm) or a retainer (d>65mm). 

–High Quality Material:
–GCr15/GCr15SiMn / G20Gr2Ni4A
–Heat treatment of Bainite
–German grinding process secondary tempering stability
–The whole series of high-precision production P6 P5 level