... ,500~15,000r.p.m Output:2.5~35W Models RK-510(3429),, Carbon brush dc motor, Cylinder, Diameter34mm, length 29mm ... , fixing screw 2-M3.0 mm. Operating voltage: 3~24V, At no load Speed 3,500~15,000 r.p.m ... .03,3500.0352,5530.1263.21.6656.1263 DC Motor RK-510(3429)