Ball bearings 6303 (RS, 2RS, Z, 2Z) Dimensions and Calculation data d17mm D47mm B14mm rs1mm 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 r14,5kN Rated static load capacityC or6,71kN Fatigue strength limitPu0,298kN Bearing weight0,12kg Nominal speed34000r/min The maximum frequency of rotation22000r/min