Stepper Motor with 28cm Lead Screw: Bipolar, 200 Steps/Rev, 42×38mm, 2.8V, 1.7 A/Phase

Pololu item #: 2268
Brand: SOYO supply outlook
Status: Active and Preferred 
RoHS 3 compliant

Price break Unit price (US$)
1 65.95
5 61.99
25 58.27

backorders allowed

This NEMA 17-size hybrid bipolar stepping motor has an integrated 28 cm (11″) threaded rod as its output shaft, turning it into a linear actuator capable of precision open-loop positioning. The included traveling nut has four mounting holes and moves 40 µm (1.6 mil) per full step; finer resolution can be achieved with microstepping. The stepper motor has a 1.8° step angle (200 steps/revolution) and each phase draws 1.7 A at 2.8 V, allowing for a holding torque of 3.7 kg-cm (51 oz-in).

Alternatives available with variations in these parameter(s): shaft type Select variant…

 Description Specs (13) Pictures (10) Resources (1) FAQs (2) On the blog (2) 


Size: 42.3 mm square × 38 mm
(NEMA 17)1
NEMA size: 17
Weight: 385 g2
Shaft diameter: 8 mm

General specifications

Shaft type: 28 cm threaded rod3
Current rating: 1680 mA4
Voltage rating: 2.8 V
Holding torque: 51 oz·in
Steps per revolution: 200
Resistance: 1.65 Ohm4
Inductance per phase: 3.2 mH
Number of leads: 4
Lead length: 16 cm5


Not including the shaft.
This measurement includes the traveling nut, which adds 11.6 g (0.41 oz).
ISO definition of thread characteristics: Tr 8 × 8(P2) – trapezoidal thread, 8 mm diameter, 8 mm lead, 2 mm pitch.
Per coil.
After twisting.

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