A high-power 12V brushed DC gearmotor in the Pololu 25D form factor (25mm diameter) with a 34.014:1 metal spur gearbox and an integrated 48 CPR quadrature encoder. The encoder provides 1632.67 counts per revolution of the gearbox output shaft, enabling precise speed and position control for robotics applications.

The D-shaped output shaft (4mm diameter, 12.5mm long) is compatible with Pololu 25D mounting brackets, wheels, and couplers.

Key Features

• 34.014:1 Metal Gearbox – Durable metal spur gears for reliable operation
• Integrated Quadrature Encoder – 48 CPR on motor shaft (1632.67 CPR at output)
• High-Power Motor – 12V brushed DC with high torque output
• D-Shaped Output Shaft – 4mm diameter, 12.5mm long
• 25D Form Factor – ~25mm diameter cylinder

Specifications

• Gear Ratio – 34.014:1
• Operating Voltage – 12V
• No-Load Speed – 290 RPM @ 12V
• No-Load Current – 300 mA
• Stall Torque – 8.5 kg·cm (120 oz·in)
• Stall Current – 5.6 A
• Encoder Resolution – 48 CPR (motor shaft) / 1632.67 CPR (output shaft)
• Output Shaft – D-shaped, 4mm diameter × 12.5mm long
• Motor Diameter – ~25mm

Ideal For

• Robotics platforms requiring precise speed and position control
• PID-controlled drive systems
• Autonomous vehicles and navigation robots

Package Contents

• 1× 34:1 Metal Gearmotor 25Dx52L mm HP 12V with 48 CPR Encoder