54ZYT hard ferrit permanent magnet dc motors no load 4000rpm, stall torque upto 1.8N. ... power 20w, 50w, 100w, 125w ROHS 54ZYT hard ferrit permanent magnet dc motorsno load 4000rpm, stall torque upto 1.8N.mrated ... insulation Overload protection / Thermal protection 54ZYT China pmdc motor, rated 12v, 24v, 36v, 40v