Ball bearings 618/8 (RS, 2RS, Z, 2Z) Dimensions and Calculation data d8mm D16mm B4mm rs0,2mm Do you have a question or need help? If you would like one of our specialists to contact you for clarification, please click here. Contacts Rated dynamic load capacityC r1,55kN Rated static load capacityC or0,722kN Fatigue strength limitPu0,033kN Bearing weight0,003kg Nominal speed90000r/min The maximum frequency of rotation56000r/min