)Japan Servo 85 oz-in 400 Steps/Rev . $29/ea, (- and if you want to see what a quality motor looks like inside, here is the dis-assembled motor, showing the clean design and double stack with ball-bearing construction.)
Japan Servo TYPE KP56QM2-001, with Ball Bearings on each end of shaft. (note, unless you burn out the windings, and this takes at least a little effort, the only failure mode in step motors is bearing failure - which is easy to remedy as well as rare with Japan ball bearings)
NEMA23 mounting flange: Motor Length = 75mm from flange to rear of case, Motor Diameter = 57mm. Shaft Length = 14mm, Shaft Diameter = 5.9mm
6 Wire CT windings 3.5 ohm - 0 - 3.5 ohm,
Maximum Current: Center tapped - 1.5A , Bipolar, full winding - 1.0A
note: These motors have been carefully removed from surplus assemblies - leads are 75 mm long, and may require extending for some applications. We guarantee your satisfaction with these motors !! Limited quantity available. $29/ea