30/5 Double Row Angular Contact Ball Bearing  detail Specifications: Metric series Material:52100 Chrome Steel Construction:Double Row Seal Type :open type Limiting Speed:30500 rpm Cage:Nylon cage or Steel cage Cage Material:Polyamide(PA66) or Steel Weight:0.005 kg Main Dimensions: Bore diameter (d):5mm Outer diameter (D):14mm Width (B): 7mm Chamfer Dimension( r) min.:0.2mm Dynamic load ratings(Cr): 1.85KN Static load ratings(Cor): 0 .95KN   ABUTMENT DIMENSIONS Minimum diameter shaft shoulder (da) min. : 6.4 mm Maximum diameter of housing shoulder (Da) max. : 12.6 mm Maximum fillet radius (ra) max. 0.2 mm