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 Pancake Stepper (23mm)
by STEPPERONLINE
★ Best for: Lightweight wrist joints
Slim 23mm "pancake" NEMA 17 — saves weight on the wrist and outer joints.
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Why we recommend it
Weight at the end of an arm hurts twice — it loads every joint below it. This 23mm pancake NEMA 17 keeps the wrist and outer links light while still giving you true stepper precision. Lower torque (17Ncm) means it is not for the shoulder, but for the lighter distal joints it is exactly the right tool, and it pairs with the same A4988/DRV8825 drivers as the full-size motors.
At a glance
| Frame | NEMA 17 (42 mm) |
|---|---|
| Length | 23 mm (pancake) |
| Current | 1.0 A/phase |
| Torque | 17 Ncm |
| Step angle | 1.8° |
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.
The conceptsRobotic Arm Degrees of Freedom (DOF) Explained Simply
What degrees of freedom (DOF) means for a robotic arm, how many you need for different tasks, and how DOF affects cost, control and reach — explained in plain language.
Compare with
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