78:1 Metal Gearmotor 20Dx43L mm 12V CB with Extended Motor Shaft

Pololu presents a compact yet powerful brushed DC gearmotor. This model features a 12V brushed DC motor equipped with long-lasting carbon brushes. It combines this with a 78.13:1 metal spur gearbox, providing a robust and reliable power source. The gearmotor is cylindrical in shape, measuring just 20mm in diameter. Its D-shaped output shaft has a diameter of 4mm and protrudes 18mm from the faceplate of the gearbox. This version also comes with a 6 x 2mm extended motor shaft.

The key specifications of this gearmotor are as follows:

Voltage	No-load Performance	Stall Extrapolation
12 V	180 RPM, 80 mA	5.4 kg⋅cm, 1.6 A

The Pololu gearmotor is perfect for use in robotics, automation, and other applications where compact, high-torque power sources are required. Its small size and high power output make it an ideal choice for projects where space is at a premium but performance cannot be compromised.

The unique properties of the gearmotor include its long-life carbon brushes which ensure extended operational life and reduce the need for maintenance. The metal spur gearbox provides high torque output and durability, even under demanding conditions. The extended motor shaft allows for more flexible mounting options and greater versatility in a wide range of applications. These features and benefits make the Pololu gearmotor a standout choice for your power needs.