Ball bearings 6404 (RS, 2RS, Z, 2Z) Dimensions and Calculation data d20mm D72mm B19mm rs0,6mm 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 r31,1kN Rated static load capacityC or15,25kN Fatigue strength limitPu0,83kN Bearing weight0,4kg Nominal speed24000r/min The maximum frequency of rotation15000r/min