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

Categories Stepping Motor
Place of Origin: China
Brand Name: DAITTO/OEM
Model Number: Gear Ratio 5:1 Planetary Gearbox With Nema 8 Stepper Motor 8HS15-0604S-PG5
Type: Motorcycle Gear
MOQ: 500
Supply Ability: 10000
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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 Number8HS15-0604S-PG5
Motor TypeBipolar Stepper
Step Angle0.38°
Holding Torque17.1Ncm
Rated Current/phase0.6A
Phase Resistance10ohms
Recommended Voltage12V

Gearbox Specifications

Gearbox TypePlanetary
Gear Ratio4.75:1
Backlash at No-load<=1°
Max.Permissible Torque0.5Nm(70.8oz-in)
Moment Permissible Torque1Nm(141.6oz-in)
Shaft Maximum Axial Load5N
Shaft Maximum Radial Load25N

Physical Specifications

Frame Size22 x 22mm
Motor Length38mm
Gearbox Length20.5mm
Shaft DiameterΦ6mm
Shaft Length15mm
D-cut Length9mm
Number of Leads4
Lead Length300mm


Wire Color
Board Connector

Make sure the motor connect to a constant current or chopper drive controller before you test motor. Connecting the motor directly to a power supply will destroy the motor.

Related Products

  • Stepper Motor Driver
    For each stepper motor, it should work with a stepper motor driver, below is a matched stepper motor driver:
    • ST-6128: Economical stepper driver, Output current 0.25 - 2.0A, Input voltage 9V - 32VDC, Max. step resolution 1/128.
    • DM422C: Digital stepper driver, Output current 0.2 - 2.2A, Input voltage 20-40VDC, Max. step resolutions 1/32, ideal solution for applications that require low-speed smoothness.
  • Stepper Motor Power Supply
    Recommended Driving Voltage is 12 - 24VDC.

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:
  • The gearbox output torque will depending on many factors, it can be calculated by:
  • The Gearbox Step Angle can be determined by:
  • When choosing a stepper motor with a gearbox, keep in mind that the gearbox Max Permissible Torque, beyond which the gearbox could become damaged.

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