Angular contact ball bearings, double row. Outside diameter D: 52mm. Width B: 20.6mm. Shoulder diameter inner ring d1: 34.44mm. Recess diameter inner ring shoulder d2: 32.7mm. Shoulder diameter outer ring D1: 44.55mm. Recess diameter outer ring shoulder D2: 45.9mm. Chamfer dimension inner ring r1,2min: 1mm. Distance pressure points a: 30mm. Abutment diameter shaft damming: 31mm. Abutment diameter housing Amax: 46mm. Fillet radius remix: 1mm. Basic dynamic load rating C: 21.6kN. Basic static load rating C0: 14.3kN. Fatigue load limit Pu: 0.6kN. Reference speed: 12000r/min. Limiting speed: 12000r/min. Calculation factor or: 0.06. Calculation factor e: 0.8. Calculation factor X: 0.63. Calculation factor: 0.66. Calculation factor Y1: 0.78. Calculation factor Y2: 1.24.