... .00480.0017002300 21577.507360.04.03.012.732320513.00739.2017002300Model Specification 30204 Tapered Roller BearingSize20*47*14Brand Name: TIANHEQuality Standard:ISO9001 ... -72)Vibration Level : V4,V3,V2,V13)Cage: Brass,Nylon4)Hardness : 59-63 HRCApplication:Auto,tractor,machine tool,electric machine,water ...