Stepper Motors

The stepper motors are all (externally) unmarked. As such, gathering information for them is quite dificult. It is known that they are type NEMA 17, 2-phase hybrid bipolar. They are fairly easy to replace, however, as long as you know the specs you are looking to match.

NEMA17 - 40mm

170mm x 170mm x 400mm depth

NEMA17 - 34mm

170mm x 170mm x 340mm depth

Step Angle 1.8。

Step Angle Accuracy ±5% (full step, no load)

Resistance Accuracy ±10%

Inductance Accuracy ±20%

Temperature Rise 80。C Max.(rated current,2 phase on)

Ambient Temperature -20。C~+50。C

Insulation Resistance 100MΩMin. ,500VDC

Dielectric Strength 500VAC for one minute

Shaft Radial Play 0.02Max. (450 g-load)

Shaft Axial Play 0.08Max. (450 g-load)

Max. radial force 28N (20mm from the flange)

Max. axial force 10N


  • reprap/wanhao/duplicator6/major_components/stepper_motors.txt
  • Last modified: 2019/01/06 21:05
  • by champatron