Pmdc motor D23 series of permanent magnet dc motor features: 1) voltage range: 12 vdc - 240 vdc 2) steel casing diameter: 38 mm 3) the load speed range: 1000 rpm to 10000 rpm 4) the load input power: 10 w - 150 w 5) motor uses: elevator, automatic door, massager, small water pumps, and so on office automation, household appliances, fitness equipment. We can modify or make adjustment on such as performance, dimensions according to your requirement , your satisfaction is our priority. Stander package