3801 Double Row Angular Contact Ball Bearing  detail Specifications: Metric series Material : 52100 Chrome Steel Construction : Double Row Seal Type : open type Limiting Speed : 18100 rpm Cage : Nylon cage or Steel cage Cage Material : Polyamide(PA66) or Steel Weight : 0.01 kg Main Dimensions: Bore diameter (d): 12 mm Outer diameter (D): 21 mm Width (B): 7 mm Chamfer Dimension( r) min.: 0.3mm Dynamic load ratings(Cr): 2.19 KN Static load ratings(Cor): 1.55 KN   ABUTMENT DIMENSIONS Minimum diameter shaft shoulder (da) min. :14 mm Maximum diameter of housing shoulder (Da) max. : 19mm Maximum fillet radius (ra) max. 0.3 mm