This is a small worm driven motor gearbox unit powered by the new 1532 SM motor. It is available in 25:1, 30:1 and 40:1 single reduction gearbox ratio’s. The SM is a 5-pole motor with approximately 2.9 watts of power it is 15mm wide and 32mm long with shafts at both end with similar power to the Mashima 1833 motor. It has a 10000rpm running speed with 8000rpm working speed. See prices below and photo at bottom of page.