Deep groove ball bearings, single row. Outside diameter D: 58mm. Width B: 7mm. Shoulder diameter inner ring d1: 49.1mm. Shoulder diameter outer ring/inner diameter housing washer D1: 53.9mm. Recess diameter outer ring shoulder D2: 55.4mm. Chamfer dimension outer ring r1,2min: 0.3mm. Abutment diameter shaft damming: 47mm. Abutment diameter shaft admix: 49mm. Abutment diameter housing Amax: 56mm. Fillet radius remix: 0.3mm. Basic dynamic load rating C: 6.6kN. Basic static load rating C0: 6.1kN. Fatigue load limit Pu: 0.26kN. Reference speed: 22000r/min. Limiting speed: 11000r/min. Calculation factor or: 0.015. Calculation factor f0: 17.