Spherical Roller Bearing 1.GCR15, brass cage, big size 2.high precision, long life 3.ISO9001 4.good payment Spherical Roller Bearing Materialchrome steel(GCR15) or carbon steel(GCR11)HardnessHRC60-65Tolerance standardGB/T307(ISO492)CertificateISO9001 Packingsingle color box or tube or industrial paperOEMwe have 10 years experience of OEMH.S Code84822000Service RangeOEM brand,Specially produce ...