The Pololu 156:1 Metal Gearmotor 20Dx44L mm 12V w/ Extended Motor Shaft is a compact yet powerful brushed DC gearmotor designed for robotics, automation, and precision projects. This model combines a robust 12V brushed DC motor with a 156.25:1 metal spur gearbox, delivering high torque in a small footprint. Its extended D-shaped output shaft allows for flexible integration into custom mechanisms, while compatibility with magnetic encoder kits enables accurate speed or position feedback.
Key Features:
• Compact brushed DC motor: 12V, durable carbon brushes
• High-torque metal spur gearbox: 156.25:1 ratio
• Wide gear ratio range available: 25:1 up to 488:1
• D-shaped output shaft: 4 mm diameter, 18 mm extended length
• Includes 6x2 mm extended motor shaft for versatile mounting
• Compatible with magnetic encoder kits for speed/position feedback
Specifications:
• Voltage: 12 V
• No-load performance: 89 RPM, 80 mA
• Stall extrapolation: 9.0 kg⋅cm (130 oz⋅in), 1.6 A
• Gearbox torque limit: 70 oz-in (5 kg-cm)
• Gearmotor diameter: 20 mm
• Exact gear ratio: 156.25:1
What’s Included:
• 1x Pololu 156:1 Metal Gearmotor 20Dx44L mm 12V CB with Extended Motor Shaft
This Pololu 12V Metal Gearmotor is ideal for small robotic platforms, precise automated mechanisms, and hobbyist electronics projects requiring compact, high-torque performance. Its sturdy construction and extended shaft make it highly adaptable for custom applications.
