Ball bearings 61809 (RS, 2RS, Z, 2Z) Dimensions and Calculation data d45mm D58mm B7mm rs0,3mm 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 r6,9kN Rated static load capacityC or6,3kN Fatigue strength limitPu0,45kN Bearing weight0,04kg Nominal speed22000r/min The maximum frequency of rotation14000r/min