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Gear Ratio 5:1 Planetary Gearbox With Nema 8 Stepper Motor 8HS15-0604S-PG5

72,57 €

Gear Ratio 5:1 Planetary Gearbox With Nema 8 Stepper Motor 8HS15-0604S-PG5



This is the smallest high precision NEMA 8 Stepper motor, it has an integrated Planetary gearbox with a 4.75:1 gear ratio, the resolution reach 0.38° step angle. It's a good solution in applications that need very low rotation speeds and/or lots of torque.

Electrical Specification

Manufacturer Part Number 8HS15-0604S-PG5
Motor Type Bipolar Stepper
Step Angle 0.38°
Holding Torque 17.1Ncm
Rated Current/phase 0.6A
Phase Resistance 10ohms
Recommended Voltage 12V
Inductance 5.5mH±20%(1KHz)

Gearbox Specifications

Gearbox Type Planetary
Gear Ratio 4.75:1
Efficiency 90%
Backlash at No-load <=1°
Max.Permissible Torque 0.5Nm(70.8oz-in)
Moment Permissible Torque 1Nm(141.6oz-in)
Shaft Maximum Axial Load 5N
Shaft Maximum Radial Load 25N

Physical Specifications

Frame Size 22 x 22mm
Motor Length 38mm
Gearbox Length 20.5mm
Shaft Diameter ?6mm
Shaft Length 15mm
D-cut Length 9mm
Number of Leads 4
Lead Length 300mm
Weight 120g


Wire Color Black Green Red Blue
Board Connector A C B D

Custom Options

  • Connectors: Molex, Harwin, Tyco/AMP, JST etc.
  • Lead wires & cables: Special lengths, Protective hose
  • Shaft: Round, D-Cut, Cross drilled, Key-Way, Thread or Hollow

How to choose a geared stepper motor?

  • Selecting a geared stepper motor will result in increasing the output torque and decreasing the speed. Simply, the Gearbox Output Speed is:
    Geared Stepper Motor Speed
  • The gearbox output torque will depending on many factors, it can be calculated by:
    Geared Stepper Motor Torque
  • The Gearbox Step Angle can be determined by:
    Geared Stepper Motor Step Angle
  • When choosing a stepper motor with a gearbox, keep in mind that the gearbox Max Permissible Torque, beyond which the gearbox could become damaged.