NEMA 17 Closed Loop Gear Reducer with Brake and Encoder – Precision Gear Reducer

This high-performance NEMA 17 Gear Reducer with encoder integrates a closed loop control system, enabling better torque stability and higher precision in applications. Equipped with a built-in brake and encoder, this motor offers enhanced motion control and feedback accuracy. With a compact design and precision gearbox, it is ideal for robotics, automation, and CNC applications requiring high reliability.

Features

• Integrated closed loop stepper motor for torque stability and feedback control.
• Includes a built-in brake to ensure motor holding during power failure or idle states.
• Precision gear reducer for smooth motion and increased torque output.
• Encoder with 6-wire connection for precise feedback in motion control systems.
• Compact NEMA 17 frame fits into standard motor mounting systems.

Technical Specifications

Parameter	Specification
Step Angle	1.8° ±5%
Phase Voltage	4.2 VDC
Phase Current	2.0 Amps
Phase Resistance	1.4 Ω
Inductance	3 mH
Static Torque	0.55 Nm (78.87 oz·in)
Insulation Class	Class B
Insulation Resistance	100MΩ Min. (500V DC)
Ambient Temperature	-10°C ~ +50°C
Motor Weight	Approx. 0.8 kg
Recommended Drive	2D4020A

Encoder and Brake Wiring Diagram

Encoder Wires

Color	Encoder Wire Description
Red	VDC (Power)
Black	Ground
Yellow	Channel A+
Green	Channel A-
Blue	Channel B+
White	Channel B−

Brake Wires

Color	Brake Wire Description
Red	Brake Power (A+)
Black	Brake Power (A-)

Applications

• Robotics and CNC machinery requiring precise position feedback
• 3D printing applications with feedback and precise control
• Automation systems and robotic arms
• Drive systems in high-torque applications

Download Datasheet

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

📄 Download PDF Datasheet