Pololu 156:1 Metal Gearmotor 20Dx44L mm 12V w/ Extended Motor Shaft – High Torque Compact DC Gearmotor

🔧 Product Overview

The 12V Pololu 156:1 Metal Gearmotor (20Dx44L mm) is a compact high torque DC gearmotor designed for robotics, automation, and precision motion systems.
With a 156:1 gear ratio and sturdy metal gearbox, this motor delivers controlled low-speed output with excellent torque, perfect for mobile robots and mechanical subsystems.

Whether you're building a robot chassis or an automated mechanism, this gearmotor combines compact size, high torque performance, and reliable operation for demanding applications.

For applications requiring self-locking performance and even higher torque, consider our worm gear motor solutions.

⭐ Key Features

• ⚙️ 156:1 Gear Ratio – Provides high torque at practical speed

• 🔋 12V DC Input – Standard voltage for controllers and batteries

• ⚙️ All-Metal Gearbox – Durable design for consistent long-term performance

• 🔩 Compact Build (20Dx44L mm) – Ideal for space-constrained installations

• 🚀 Suitable for Robotics & Automation Projects – Enhances torque and motion control

🧠 Why Choose This Gearmotor?

This Pololu metal gearmotor stands out by offering a balance of torque and size:

✔ Metal Gear Benefits

• Improved durability over plastic gears

• Better heat resistance and lifespan

• Consistent high torque under load

✔ High Gear Ratio Advantage

• Higher effective torque for heavy loads

• Slower, more stable motion control

• Ideal for robotics drive systems and load-bearing subsystems

This makes it excellent for applications where torque and compactness matter more than top speed.

🔩 Applications

This compact high torque DC gearmotor is commonly used in:

• Mobile robot drive systems

• Pan/tilt mechanisms and robotic arms

• Conveyor and materials handling systems

• Small automated gates and switches

• DIY automation and embedded hardware projects

🧭 How to Choose the Right DC Gearmotor

When selecting a gearmotor, consider:

This Pololu gearmotor’s 156:1 ratio and metal gearbox make it a smart choice for systems demanding controlled low-speed torque with limited space.

⚖️ Gearmotor Comparison (When Choosing)

For robotics and medium-sized mechanisms, higher gear ratio gearmotors outperform general-purpose DC motors.

📊 Technical Specifications

❓ Frequently Asked Questions (FAQ)

Q1: What is the benefit of a 156:1 gear ratio?
A: A high gear ratio increases torque and reduces output speed, ideal for applications that need strong force at lower speed.

Q2: Is this gearmotor compatible with 12V systems?
A: Yes, this motor runs on 12V DC, compatible with most battery and controller setups.

Q3: Can I use this motor in small robots?
A: Yes —Its compact size and high torque make it perfect for mobile robots and tight mechanical configurations.

Q4: Why choose metal gears over plastic?
A: Metal gears provide better durability, reduced wear, and higher load capacity for demanding use cases.

📦 Package Includes

• 1 × Pololu 156:1 Metal Gearmotor (20D x 44L mm, 12V DC)

🔍 Product Summary

The Pololu 12V High Torque 156:1 Metal Gearmotor brings together compact design, durable metal gears, and high torque output to power robotics and automation projects that require reliable motion control in a space-efficient package.