Ball bearings 61905 (RS, 2RS, Z, 2Z) Dimensions and Calculation data d25mm D42mm B9mm 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 r7,21kN Rated static load capacityC or4,51kN Fatigue strength limitPu0,26kN Bearing weight0,045kg Nominal speed36000r/min The maximum frequency of rotation22000r/min