Description
The Pololu 12V, 75:1 Metal Gear Motor HP w/ 48 CPR Protected Encoder is a high-performance brushed DC gearmotor that combines a 12V high-power motor, a durable all-metal 74.83:1 gearbox, and an integrated 48 CPR quadrature encoder for precise speed and position feedback. Designed for robotics, automation, and motion control applications, this motor delivers high torque, reliable performance, and compact size—making it ideal for driving robotic wheels, actuators, and other precision mechanisms.
The integrated magnetic encoder provides 3591.84 counts per revolution (CPR) of the gearbox’s output shaft, allowing for accurate closed-loop feedback in control systems. The metal gearbox ensures long-lasting durability and smooth operation even under high load. Its D-shaped 4 mm output shaft facilitates easy and secure attachment to gears, pulleys, or wheels.
Key Features
• High-power 12V DC motor with metal gearbox for durability and torque
• Integrated 48 CPR quadrature encoder for precise speed and position measurement
• Compact cylindrical design (25mm diameter) suitable for various robotic platforms
• D-shaped 4mm output shaft ensures secure coupling with mechanical parts
• Ideal for precise motion control, automation, and robotic drive systems
What’s Included
• 1 × Pololu 12V, 75:1 Metal Gear Motor HP w/ 48 CPR Protected Encoder
Specifications
| Parameter | Value |
|---|---|
| Gear Ratio | 74.83:1 |
| Nominal Voltage | 12 V |
| No Load Speed | 130 rpm |
| No Load Current | 300 mA |
| Stall Current | 5600 mA |
| Stall Torque | 240 oz·in (≈17.3 kg·cm) |
| Shaft Diameter | 4 mm (D-shaped) |
| Encoder Resolution | 48 CPR on motor shaft (3591.84 CPR output) |
| Body Diameter | 25 mm |
| Body Length | 69 mm |
| Weight | 104 g |
| Shaft Extension Length | 12.5 mm |
| Shaft Type | D Type |
Applications
• Robotics drive systems
• Mobile robot wheel control
• CNC and automation actuators
• Encoder-based motion feedback sy
