Carbon brush dc motor Diameter 34mm,Length 29mm,Shaft 3mm Voltage: 3~24V No load Speed 3,500~15,000r.p.m ... Output:2.5~35W Models RK-510(3429),, Carbon brush dc motor, Cylinder, ... Diameter34mm, length 29mm; shaft 3 mm, fixing screw 2-M3.0 mm. Operating voltage: 3~24V, At no load Speed ... ~ 3624.03,3500.0352,5530.1263.21.6656.1263 DC Motor RK-510(3429)