This is Nema34 Planetary Reducer 86mm stepper motor. The Input shaft is 14mm. Planetary reducer gearbox with a 1:5 gear ratio at rated torque of 250Kg.
Motor Specifications:
  • Step Angle : 1.8 Degree
  • Configuration: 4 wire bipolar stepper motor
  • Phase current: 5Amp
  • Resistance/phase: 0.76ohm
  • Inductance/Phase: 8.5mH
  • Rotor inertia: 2700gcm2
  • Shaft Dia : 12.7mm
  • Shaft Length : 32mm
  Gearbox Specifications:
  • Category : Planetary gear reducer
  • Efficiency : 96%
  • Ratio : 1:5
  • Noise : <45 DB
  • Backlash : <15 Arcmin
  • Flange: 86mm Nema34
  • Output Shaft Dia : 14mm (key shaft)
  • Gearbox height: 53mm