tapered roller bearing,taper bearings 1.GB307, DIN620 standard 2.Bulk supply 3.Reliable quality 4.bearing material: GCr15 Metric tapered roller bearings feature, please check IXIN's pdf catalog for details.1. Taper roller bearing Material:GCr15,100Cr6,521002. Cage(Retainer):Brass cage,nylon cage,steel cage3. Production standard:GB307, DIN6204. Quality insurance: Same as samples Single row tapered ...