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Phidgets 3329_0 42STH38 NEMA 17 Bipolar Stepper with 100:1 Gearing

Item number: 22049

EAN: 4251326840702

This bipolar stepper motor with a rear shaft and planetary gear has a step angle of 0.018° and a torque of 48 kg-cm at low speeds.

Category: Motors, Actuators & Servos

94,01 €

including 19% VAT. , plus shipping (DPD)

Available now!

Shipping time: 7 - 8 workdays


Phidgets 3329_0 Bipolar Stepper

This NEMA-17 motor has an integrated planetary gearbox with a gear ratio of 991044/2057:1. The rear shaft is exposed, so you can mount an encoder or shaft coupler.

At the output of the gearbox, the step angle is about 0.018°. If you use the step angle in calculations, you should derive the exact step angle by dividing 1.8° by the gear reduction ratio.

At 1.7 amps, this geared stepper motor can produce a maximum torque of 250 kg-cm. However, the gearhead is only rated for 48 kg-cm of continuous torque and 100 kg-cm for short overloads. If this geared stepper motor is loaded beyond the rated torque of the gearbox, its service life will be shortened.


This motor must be controlled by a constant current or chopper drive controller.


Connecting the motor directly to a power supply will destroy the motor and void the warranty. If you want to check your motor, make sure it is connected to a constant current/chopper drive Controller.

Motor Properties Motor Type Bipolar Stepper
  Step Angle 0.018°
  Step Accuracy ± 5 %
  Holding Torque 48 kg·cm
  Rated Torque 48 kg·cm
  Maximum Motor Speed 10 RPM
Electrical Properties Recommended Voltage 24 V DC
  Rated Current 1.7 A
  Coil Resistance 1.7 Ω
  Phase Inductance 3.2 H
Physical Properties Shaft Diameter 8 mm
  Rear Shaft Diameter 3.9 mm
  Mounting Plate Size NEMA - 17
  Weight 564 g
  Number of Leads 4
  Wire Length 300 mm
Gearbox Properties Gearbox Type Planetary
  Gear Ratio 99 ⁄2057 : 1
  Backlash Error 1 1⁄2°
  Maximum Strength of Gears 48 kg·cm
  Shaft Maximum Axial Load 49.1 N
  Shaft Maximum Radial Load 98.1 N

Mechanical Drawing Phidgets 3329_0

Shipping weight: 0,80 Kg
Product weight: 0,60 Kg