Inch tapered roller bearing 1.GB307, DIN620 grade 2.Bulk supply 3.Reliable quality Tapered roller bearing feature, please check IXIN's pdf catalog for details.1. Bearing Material:GCr15,100Cr6,521002. Cage(Retainer):Brass cage,nylon cage,steel cage3. Production standard:GB307, DIN6204. Quality insurance: Same as samplesTapered roller bearing Inch SizeA 4059/A 4138LM 501349/LM 50131403062/03162LM ...