STEPPERONLINE NEMA 17 Stepper Motor (2A, 59Ncm)
High-torque 48mm NEMA 17 — the standard motor for precise, repeatable arm joints.
Best for: High-torque arm joints
Stepper Motors
STEPPERONLINE NEMA 17 Stepper Motor (1.5A, 3-Pack)
by STEPPERONLINE
★ Best for: Small 3-axis stepper arms
Three compact 38mm NEMA 17 steppers — enough to drive a small 3-axis arm.
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Why we recommend it
A three-pack of the compact 42Ncm NEMA 17, which lines up neatly with a small stepper arm’s base, shoulder and elbow. At 1.5A and 38mm long these run cooler and lighter than the 48mm motors — a good match for a lighter frame where you don’t need maximum torque. Buying a matched set keeps step response consistent across joints. Each includes a 1m cable and connector for a tidy build.
At a glance
| Quantity | 3 motors |
|---|---|
| Frame | NEMA 17 (42 mm) |
| Length | 38 mm body |
| Current | 1.5 A/phase |
| Torque | 42 Ncm |
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.
Builds by platform3D Printed Robotic Arm: Build a Rigid 6-Axis Arm at Home
How to build a 3D printed robotic arm — choosing a design, the best servos and bearings, print settings for strong parts, and assembling a precise 6-axis manipulator.
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