Pololu Metal Gearmotors » 37D Metal Gearmotors » 12V 37D Metal Gearmotors »
100:1 Metal Gearmotor 37Dx73L mm 12V with 64 CPR Encoder (Helical Pinion)
This gearmotor is a powerful 12V brushed DC motor with a 102.08:1 metal gearbox and an integrated quadrature encoder with a resolution of 64 counts per revolution (CPR) of the motor shaft and 6533 CPR of the gearbox’s output shaft. The gearbox is composed mainly of spur gears, but it features helical gears for the first stage for reduced noise and improved efficiency. These units have a 16 mm-long, 6 mm-diameter D-shaped output shaft. This gearmotor is also available without an encoder.
Key specifications:
| voltage | no-load performance | stall extrapolation |
|---|---|---|
| 12 V | 100 RPM, 200 mA | 34 kg⋅cm (470 oz⋅in), 5.5 A |
Alternatives available with variations in these parameter(s): gear ratio motor type encoders? Select variant…
| Description | Specs (22) | Pictures (16) | Resources (4) | FAQs (3) | On the blog (0) |
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File downloads
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Datasheet for Pololu 37D Metal Gearmotors (2MB pdf)
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Dimension diagrams of the Pololu 37D mm Metal Gearmotors (459k pdf)
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3D models of 37D mm gearmotors (7MB zip)
This file contains 3D models (in the step file format) of the 37D mm gearmotors with and without encoders.
Recommended links
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MATLAB script to plot motor performance curves for Pololu brushed DC gearmotors
This MATLAB script, written by Ali Asgher Mansoor Habiby, plots speed, power, current draw, and efficiency as they vary with torque when you input the gearmotor specifications. It also prints the resistance of the motor, and the current draw and torque at which maximum efficiency and maximum power occur.
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