Ball bearings 61911 (RS, 2RS, Z, 2Z) Dimensions and Calculation data d55mm D80mm B13mm 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 r16,9kN Rated static load capacityC or14,3kN Fatigue strength limitPu0,77kN Bearing weight0,19kg Nominal speed17000r/min The maximum frequency of rotation11000r/min