NEMA 17 Stepper Motor with Keyed Shaft Coupling – 80mm Length Body

This NEMA 17 keyed shaft coupling motor is engineered for applications demanding both precision and secure torque transfer.
The 80mm extended body provides enhanced torque output of 0.9 Nm, making it an excellent fit for industrial automation,
CNC systems, and robotic motion control setups. The 8mm keyed shaft ensures reliable coupling connection and
prevents slipping under heavy loads.

Features

• High-torque shaft coupling keyway design ensures secure torque transfer.
• Compact NEMA 17 stepper motor frame with extended 80mm body for added strength.
• Compatible with shaft coupler with keyway and other precision mechanical couplings.
• 1.8° step angle for smooth and accurate motion control.
• Durable Class B insulation, stable performance across wide temperature range.

Applications

• 3D printers and laser engravers
• Automation and pick-and-place machines
• CNC routers and cutting equipment
• Robotics and laboratory instruments
• Custom keyed shaft coupling solutions for motion control

Specifications

No.	Item	Specification
1	Step Angle	1.8° ±5%
2	Number of Phase	2
3	Phase Voltage	4.0 VDC
4	Phase Current	2.5 Amp
5	Phase Resistance	1.6 Ω ±10% (At 20°C)
6	Phase Inductance	4.0 mH ±20%
7	Static Torque	0.90 Nm
8	Insulation Class	Class B
9	Insulation Resistance	100MΩ Min. (500V DC)
10	Ambient Temperature	-20°C ~ +50°C
11	Ambient Humidity	15% ~ 95%
12	Motor Weight	Approx. 0.5 kg
13	Use Voltage	DC 12–36V
14	Recommended Driver	2D4020A

Wiring Diagram

Wire Color	Connection
Black	A+
Green	A−
Red	B+
Blue	B−

Keyed Shaft Dimensions

The motor features an 8mm keyed shaft with a shaft coupling keyway that fits
1-keyed shaft couplers and compatible shaft coupler with keyway configurations, ensuring precise alignment and torque stability.

Customization Available

The output shaft size and keyway shape can be customized according to your mechanical requirements.
For custom harness or cabling solutions, please visit
Custom Stepper Motor Cable Page.

Download Datasheet

Download the full specification sheet for detailed parameters, wiring guide, and performance curves.

📄 Download PDF Datasheet