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NU421-M single row Cylindrical roller bearing detail Specifications: Material : 52100 Chrome Steel Construction : Single Row Seal Type : open type Cage : Brass Cage Cage Material : Brass Limiting Speed : 3150 rpm Packing : Industrial packing or single box packing Weight : 17.40 kg MainDimensions: Bore diameter (d) : 105 mm Outer diameter ( D) : 260 mm Width (B) : 60 mm Chamfer dimension (r) min. : 4.0 mm Chamfer dimension (r1) min. : 4.0 mm Permissible axial displacement (S ) max. : 5.7 mm Raceway diameter of inner ring (F) : 144.50 mm Dynamic load ratings (Cr) : 549.00 KN Static load ratings (Cor) : 531.00 KN ABUTMENT DIMENSIONS Diameter shaft shoulder (da) min. : 125 mm Diameter shaft shoulder (da) max. : 143 mm Minimum shaft shoulder (Db) min. : 147 mm Diameter of housing shoulder (Da) max. : 240 mm Maximum recess radius (ra) max : 3.0 mm Maximum recess radius (ra1) max : 3.0 mm