12V and 24V Brushless DC Motor Both external controller and integrated electronics are optional. Key Specifications/ ... polesNo-loading speed: 4300, 5200 and 9,000rpmRated power: 28, 35, 43 and 45WRated speed: 3,400, 4,000 and 8 ... torque: 0.042, 0.067, 0.10 and 0.126NmRemarks:Motor with internal controller will be 13.5mm longer than the ...