🔧 Product Overview
The OpenBuilds NEMA-17 Bipolar Stepper Motor (76 oz-in) delivers high precision motion control with reliable torque for CNC machines, 3D printers, robotics, and automated systems.
With a 76 oz-in torque rating and a compact NEMA-17 frame, this stepper motor offers accurate positioning, smooth rotation, and consistent performance, making it ideal for precision mechanical applications.
⭐ Key Features
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High Precision Stepper Motor (NEMA-17) – Excellent for CNC, robotics, and motion control
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76 oz-in Torque Rating – Stable torque for consistent performance
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Bipolar Drive – Smooth, efficient current utilization
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Compact Size – Fits standard NEMA-17 mounting patterns
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Reliable and Durable – Engineered for repeatable precision
🧠 Why Choose This Stepper Motor?
Stepper motors are a popular choice for positioning systems due to their:
✔ Precision Control
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Moves in defined steps → accurate positioning
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Ideal for motion-based robotics and CNC operations
✔ Smooth Motion
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Bipolar configuration = even torque distribution
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Less vibration compared with unipolar designs
✔ Widely Compatible
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Works with common stepper drivers (A4988, DRV8825, etc.)
This makes it perfect for systems requiring repeatable motion and exact placement.
For applications requiring geared torque in addition to precision motion, explore our planetary gearbox motor options.
🔩 Applications
This NEMA-17 stepper motor is commonly used in:
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CNC routers and milling machines
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3D printers and laser engravers
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Robotics and automation joints
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Motion control for linear stages
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DIY automated mechanisms
🧭 How to Choose the Right Stepper Motor
Consider the following selections:
| Selection Factor | Why It Matters |
|---|---|
| Frame Size | NEMA-17 = 42 x 42 mm mounting standard |
| Torque Rating | Higher torque for heavier loads |
| Voltage/Current | Matches driver and power supply |
| Step Angle | Smaller angles = finer precision |
The 76 oz-in torque rating on this NEMA-17 motor offers excellent strength for precision applications while maintaining smooth operation.
⚖️ Stepper vs DC Motors (Quick Comparison)
| Feature | Stepper Motor | DC Gear Motor |
|---|---|---|
| Precision | Very High | Medium |
| Torque | Moderate to High | Depends on gearbox |
| Control | Stepper Driver | Simple DC drive |
| Best Use | Motion & Positioning | Rotary power tasks |
Use stepper motors where accurate, repeatable motion is required — like CNC and 3D printing.
📊 Technical Specifications
| Parameter | Value |
|---|---|
| Model | OpenBuilds NEMA-17 Bipolar Stepper Motor |
| Frame Size | NEMA-17 (42 x 42 mm) |
| Torque | 76 oz-in |
| Motor Type | Bipolar Stepper |
| Voltage | Driver dependent |
| Shaft | Standard stepper shaft |
| Application | CNC, Robotics, Automation |
❓ Frequently Asked Questions (FAQ)
Q1: What does “76 oz-in” torque mean?
It describes the holding torque — the motor’s resistance to movement under load. 76 oz-in provides good holding force for precision tasks.
Q2: Can this stepper be used with an A4988 driver?
Yes — this motor is compatible with standard bipolar stepper drivers like A4988 or DRV8825.
Q3: Why choose a stepper over a DC motor?
Steppers offer precise, repeatable motion, while DC motors are better for simple continuous rotation.
Q4: Is this suitable for 3D printers?
Absolutely — NEMA-17 steppers are standard in 3D printers due to their precision and mounting compatibility.
📦 Package Includes
• 1 x OpenBuilds NEMA 17 Stepper Motor (76 oz-in torque)
• 1 x 7-foot (2.13 m) 4-conductor lead wire
• 1 x 3-inch Xtension Male to JST Male Stepper Motor Connector
• 1 x Xtension Connector (4-pin female)
📌 Product Summary
The OpenBuilds NEMA-17 Bipolar Stepper Motor offers a reliable combination of precision, torque, and standard compatibility in a compact form factor — perfect for CNC, robotics, automation, and motion control projects.
