... Various kinds of bearings are available.OEM is acceptable.Tapered roller bearings:1.Model:30000series,31000series,32000series,33000series,672-6709, 682 ... ; Non-standard Bearing;2. Materials: GCR15,GCR113.Ring and cages: Chrome bearing steel 4.Balls: Chrome steel or carbon structural ... ;12.Row: One row, double row, four row taper roller bearingPlease provide the size you need, we will quote imediately ...