Pololu
100:1 Metal Gearmotor 37Dx57L mm 12V (Helical Pinion)
A high-torque 100:1 brushed DC gearmotor from Pololu's 37D series — the largest and most powerful in their range. Measuring 37mm (1.46") in diameter and 57mm...
A high-torque 100:1 brushed DC gearmotor from Pololu's 37D series — the largest and most powerful in their range. Measuring 37mm (1.46") in diameter and 57mm long, this 12V motor delivers substantial torque for robotics and mechanical projects.
The gearbox uses helical gears for the first stage, reducing noise and improving efficiency compared to straight spur gears throughout. An optional 64 CPR quadrature encoder is available separately for closed-loop speed and position control.
Key Features
- 100:1 Gear Ratio – High torque reduction for demanding loads
- Helical Pinion First Stage – Quieter and more efficient than all-spur designs
- 37mm Diameter – Powerful form factor for robotics applications
- 12V Nominal Voltage – Compatible with standard 12V power supplies and batteries
- All-Metal Gearbox – Durable construction for sustained operation
Specifications
- Gear Ratio – 100:1
- Motor Type – Brushed DC
- Nominal Voltage – 12V
- Dimensions – 37mm diameter × 57mm length
- Gearbox Type – Metal spur gears with helical first stage
Ideal For
- Robotics drivetrains and mechanisms
- Motorised platforms and chassis
- CNC and automation projects
- Any application requiring high torque at moderate speed
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- encoder
- A device attached to a motor or shaft that reports movement, such as rotation steps or position. In a pump system, an encoder can help measure or control how much the motor has turned, which affects how repeatable the watering amount can be.
- kg·cm
- A torque unit often used for hobby servos, meaning how many kilograms of force the servo can hold at a 1 cm arm length. A higher kg·cm rating means the servo can move or hold heavier loads, but power supply current needs may also increase.
- Torque
- A twisting force that causes something to rotate, usually measured in newton-metres or kilogram-centimetres. It matters when choosing motors, servos, gears, and tools because higher torque is needed to lift heavier loads, turn larger wheels, or move mechanisms without stalling.
Find this product in
Robotics & Motion
Pololu 37d Metal Gearmotors Rev 1 2
Datasheet · 1.5 MB · Click any page to view full size
Related Tutorials
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