This standard specifies the characteristics of rigid double row ball bearings in steel t1 designed to withstand only slow rotet}ons and oscillations under load.They are intended for use inThe hubs of bell crank levers fitted with a single bearing.
EN 3056:1994 history
1994EN 3056:1994 Aerospace series - Bearings, airframe rolling - Rigid double row ball bearings in steel - Dimensions and loads