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7311 B Single Row Angular Contact Ball Bearing detail Specifications: Metric series Material : 52100 Chrome Steel Construction : Single Row Seal Type : open type Limiting Speed : 8400 rpm Cage : Nylon cage or Steel cage Cage Material : Polyamide(PA66) or Steel Contact Angle : 40° Weight : 1.055 kg MainDimensions: Bore diameter (d) : 55 mm Outer diameter (D) : 120 mm Width (B) : 29 mm Distance side face to pressure point (a) : 51 mm Chamfer Dimension ( r) min. : 2.0 mm Chamfer Dimension ( r1) min. : 1.0 mm Dynamic load ratings (Cr) : 81.70 KN Static load ratings (Cor) : 57.95 KN ABUTMENT DIMENSIONS Minimum diameter shaft shoulder (da) min. : 66 mm Maximum diameter of housing shoulder (Da) max. : 109 mm Maximum diameter of housing shoulder (Db) max. : 114.4 mm Maximum fillet radius of shaft (ra) max. : 2.0 mm Maximum fillet radius of housing (ra1) max. : 1.0 mm