NEMA 17 Pancake Motor – Ultra-Thin High-Torque Pancake Stepper Motor (0.18Nm)

This high-performance pancake motor is designed for engineers who need maximum torque in the smallest possible installation space.
With only 26mm body thickness and a powerful 0.18Nm (25.49 oz.in) holding torque, this pancake stepper offers exceptional torque density, smooth stepping accuracy, and superior reliability for compact motion-control applications.

Its low-profile structure makes it an excellent choice for 3D printer extruders, robotic mechanisms, medical diagnostic devices, textile systems,
and automation machines where every millimeter of installation depth counts.
If your application requires compact size without compromising torque, this pancake motor high torque model is the ideal solution.

 Key Advantages of the Pancake Stepper Motor

• Ultra-thin 26mm body – perfect for tight spaces
• High torque density: 0.18Nm output in a compact frame
• Low inductance design for fast and stable response
• Durable Class B insulation and excellent thermal stability
• Wide 12–36V voltage compatibility
• Ideal for precision and compact automated systems

 Technical Specifications

Parameter	Specification
Step Angle	0.9° ± 5%
Number of Phases	2
Phase Voltage	3.36 VDC
Phase Current	1.4 A
Phase Resistance	2.4Ω ±10%
Phase Inductance	5.5 mH ±20%
Holding Torque	0.18 Nm (25.49 oz.in)
Insulation Class	Class B
Insulation Resistance	>100MΩ (500VDC)
Ambient Temperature	-20°C to +50°C
Humidity	15%–95%
Motor Weight	Approx. 0.24 kg
Rated Voltage Range	12–36 VDC
Recommended Driver	OK2D4020A

 Dimensions (NEMA 17 Pancake Motor)

Dimension	Value
Motor Size	42 × 42 mm (NEMA17)
Body Length	26 mm
Shaft Diameter	Φ 5 mm
Shaft Length	17 mm
Mounting Hole Distance	31 ±0.1 mm

 Wiring Table (Terminal Number & Color)

Pin	Color	Phase
1	Black	A+
3	Red	A-
4	Green	B+
6	Blue	B-

➡️ Excitation Sequence (CW/CCW Direction Control)

Step	A+	A−	B+	B−
1	+	−	+	−
2	+	−	−	+
3	−	+	−	+
4	−	+	+	−

❓ FAQ – Pancake Stepper Motor Explained

What is a pancake stepper motor?

A pancake stepper motor is a compact, ultra-thin motor designed to deliver high torque in applications where space is extremely limited.
It provides precise position control with outstanding torque density despite its flat profile.

Why design a stepper motor in a pancake shape?

The pancake design significantly reduces axial length, so allowing the motor to fit into shallow enclosures while still providing strong torque output.
It is ideal for compact, portable, and miniaturized equipment.

Where are pancake motors used?

Pancake motors are widely used in 3D printers, compact robots, medical instruments, textile machines, laser engravers, CNC modules, and automation systems
where low-profile, high-torque motion control is required.

Download Datasheet

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

📄 Download PDF Datasheet