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3327_0 NEMA-17 Bipolar Stepper with 26.85:1

Product Code: 3327
Excl. VAT: £40.09 Incl. VAT: £48.11
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This NEMA-17 motor has an integrated Planetary gearbox with a 26 103/121 :1 ratio. It comes with the rear shaft exposed, so you can mount an encoder or shaft coupler.

At 1.7 Amps (maximum current), this stepper motor can produce a maximum torque of 77 kg-cm. However, the gearbox is only rated for 30 kg-cm of continuous torque, and 80 kg-cm for brief overloads. Loading this gearbox stepper beyond the torque rating of the gearbox will shorten its useful life.

Motor Controller and Connection

The 3327 stepper motor connects to a bipolar motor controller such as the 1067 - PhidgetStepper Bipolar HC.

The following table shows how to connect the motor wires to the board connectors to produce a clockwise rotation in the stepper motor when increasing position. To wire for counter-clockwise rotation when increasing position, reverse the red and blue wires.

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



Note: Make sure to unplug the power cord from the 1063 before switching wires around.


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
Manufacturer Part Number 42STH38-1684B / 36JXS60K26
Step Angle 0.067°
Step Accuracy 5 %
Holding Torque 30 kg·cm
Rated Torque 30 kg·cm
Maximum Speed (w/1063 Motor Controller) 21 RPM
Maximum Speed (w/1067 Motor Controller) 174 RPM
Acceleration at Max Speed
(w/1067 Motor Controller)
600000 1/16 steps/sec²


Electrical Properties

Recommended Voltage 12 V DC
Rated Current 1.7 A
Coil Resistance 1.7 Ω


Physical Properties

Shaft Diameter 8 mm
Rear Shaft Diameter 3.8 mm
Mounting Plate Size NEMA - 17
Weight 503 g
Number of Leads 4
Wire Length 300 mm


Gearbox Properties

Gearbox Type Planetary
Gear Ratio 26 103121 : 1
Backlash Error 1 12°
Maximum Strength of Gears 30 kg·cm
Shaft Maximum Axial Load 49.1 N
Shaft Maximum Radial Load 98.1 N

FeeFo Reviews

Date / Score
Customer Comment Our Response
15-Apr-2015 Product:
Conforme à la description
Read more reviews on Feefo
Feefo reviews 100% 3

Whenever possible, items which are in stock are dispatched the same day, or the next working day.

Large and/or heavy items are dispatched by UPS courier service and these orders must be placed before 15:00hrs (GMT) to ensure same day dispatch.

Small items are normally sent using a Royal Mail service for UK orders, and International Airmail or UPS for overseas orders

Returns Policy

3327_0 NEMA-17 Bipolar Stepper with 26.85:1