7306B-2RS Single Row Angular Contact Ball Bearing detail Specifications: Metric series Material : 52100 Chrome Steel Construction : Single Row Seal Type : 2RS , Sealed on both sides Seal material : NRB Lubricant : Great Wall Motor Bearing Grease2#,3# Temperature Range : -20°to 120°C Limiting Speed : 6000 rpm Cage : Nylon cage or Steel cage Cage Material : Polyamide (PA66) or Steel Contact Angle : 40° Weight : 0.342 kg MainDimensions: Bore diameter (d) : 30 mm Outer diameter (D) : 72 mm Width (B) : 19 mm Distance side face to pressure point (a) : 31 mm Chamfer Dimension ( r) min. : 1.1 mm Chamfer Dimension ( r1) min. : 0.6 mm Dynamic load ratings (Cr) : 33.73 KN Static load ratings (Cor) : 21.00 KN ABUTMENT DIMENSIONS Minimum diameter shaft shoulder (da) min. : 37 mm Maximum diameter of housing shoulder (Da) max. : 65 mm Maximum diameter of housing shoulder (Db) max. : 67.8 mm Maximum fillet radius of shaft (ra) max. : 1.0 mm Maximum fillet radius of housing (ra1) max. : 0.6 mm