... 15,000r.p.m Output:2.5~35W Models RK-510(3429),, Carbon brush dc motor, Cylinder, Diameter34mm, length ... (V)NominalSpeedCurrentSpeedCurrentTorqueOutputEffVr.p.mAr.p.mAg.cmW%g.cmRK-510-231506.0 ~ 15.012.09,2500.1667,7000. ... ~ 3024.07,5800.0906,1670.4094.35.9761.6517RK-510-1256512.0 ~ 3024.05,1400.0554,1370.2277.13 ... .2762.0390RK-510-1082512.0 ~ 3624.03,3500.0352,5530.1263.21 ...