... ~25000r.p.m Output:5~75W DC motors models RS-540 or RS-545, Carbon brush dc motor, Cylinder, Diameter35.5 mm ... .7855.2556RS-545S-50163.0 ~ 9.09.022,5001.50019,0008.12262.051.1069.91,684RS-545S-28706.0 ~ 30.09 ... .09,2500.128,0650.6420016.5664.71,561 DC Motor RS-540 & RS-545