24 Volt, 350 Watt Motor, 2500 RPM, ideal for bicycle, scooter, and robotic projects
Dimensions: 5-1/2" long by 4-3/8" diameter
Shaft Dimensions: 1.105" long, diameter of .464 for .604" then steps down to .392 diameter with flat of .355 diameter to mount sprocket. This step is .125" in length. The rest of the end of the shaft is threaded for .35" with 8mm by 1.5mm threads Also has flat on large diameter to place 9mm wrench for tightening sprocket nut.