STEPPERONLINE NEMA 17 Stepper Motor (1.5A, 3-Pack)
Three compact 38mm NEMA 17 steppers — enough to drive a small 3-axis arm.
Best for: Small 3-axis stepper arms
Stepper Motors
STEPPERONLINE NEMA 17 Stepper Motor (2A, 59Ncm)
by STEPPERONLINE
★ Best for: High-torque arm joints
High-torque 48mm NEMA 17 — the standard motor for precise, repeatable arm joints.
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Why we recommend it
STEPPERONLINE is the brand most makers trust for steppers, and this 59Ncm (84oz·in) NEMA 17 is the high-torque workhorse. At 48mm long it has noticeably more grunt than the short 34–40mm motors, making it ideal for the shoulder and elbow of a stepper-driven arm or for reusing 3D-printer hardware. Drive it with an A4988 or DRV8825 and you get fixed micro-steps and strong holding torque — the arm stays put when powered without any feedback sensor. Includes a 1m cable and connector.
At a glance
| Frame | NEMA 17 (42 mm) |
|---|---|
| Length | 48 mm body |
| Current | 2.0 A/phase |
| Torque | 59 Ncm (84 oz·in) |
| Step angle | 1.8° (200 steps/rev) |
Guides that use this
Builds by platform
DIY Robot Arm with Stepper Motors (NEMA 17 Build Guide)
Build a stepper motor robot arm with NEMA 17 motors: torque, reduction, drivers, microstepping, AccelStepper code, homing with endstops, and when to use servos.
Start hereHow to Build a Robotic Arm: A Step-by-Step Guide for Beginners
Learn how to build a robotic arm from scratch — the parts, degrees of freedom, wiring and code you need, plus a clear path from your first servo to a working 6-axis arm.
Compare with
STEPPERONLINE NEMA 17 Pancake Stepper (23mm)
Slim 23mm "pancake" NEMA 17 — saves weight on the wrist and outer joints.
Best for: Lightweight wrist joints