Spherical roller bearings. Bore diameter d: 50mm. Outside diameter D: 90mm. Width B: 23mm. Shoulder diameter inner ring d2: 60mm. Shoulder/recess diameter outer ring D1: 79mm. Width annular lubrication groove at outer ring b: 5.5mm. Diameter lubrication hole (outer ring) K: 3mm. Chamfer dimension outer ring r1,2min: 1.1mm. Taper bore: Tapered bore, taper 1:12. Abutment diameter shaft damin: 55mm. Abutment diameter shaft damax: 60mm. Abutment diameter housing Damax: 83mm. Fillet radius ramax: 1mm. Basic dynamic load rating C: 107kN. Basic static load rating C0: 108kN. Fatigue load limit Pu: 12kN. Reference speed: 7000r/min. Limiting speed: 9500r/min. Calculation factor e: 0.24. Calculation factor Y1: 2.8. Calculation factor Y2: 4.2. Calculation factor Y0: 2.8. Recommended lock nut tightening angle : 130.