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Quick Overview

Gear ratio: 50:1
Free-run speed @ 12V: 200 rpm
Stall torque @ 12V: 170 oz·in (12 kg-cm)
 3200 counts per revolution

Pololu 12V, 50:1 Gear Motor w/Encoder

Product Code : RB-Pol-125

Gear ratio: 50:1
Free-run speed @ 12V: 200 rpm
Stall torque @ 12V: 170 oz·in (12 kg-cm)
 3200 counts per revolution

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About this product

Description

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Gear ratio: 50:1
Free-run speed @ 12V: 200 rpm
Stall torque @ 12V: 170 oz·in (12 kg-cm)
 3200 counts per revolution

The Pololu 12V, 50:1 Gear Motor w/Encoder is a powerful 12V motor with a 50:1 metal gearbox and an integrated quadrature encoder that provides a resolution of 64 counts per revolution of the motor shaft, which corresponds to 3200 counts per revolution of the gearbox's output shaft. These units have a 0.61" long, 6 mm-diameter D- shaped output shaft. This motor is intended for use at 12V, though the motor can begin rotating at voltages as low as 1V.

The face plate has six mounting holes evenly spaced around the outer edge threaded for M3 screws. These mounting holes form a regular hexagon and the centers of neighboring holes are 15.5 mm apart. You can use Pololu's custom 37D mm metal gearmotor bracket (shown in the picture below) to mount the gearmotor to your project via these mounting holes and the screws that come with the bracket. The Pololu universal aluminum mounting hub for 6mm shafts can be used to mount larger Pololu wheels (80mm/90mm-diameter) or custom wheels and mechanisms to the gearmotor's output shaft.

Pololu 12V 50-1 Gear Motor with Encoder

Diagram below shows the dimensions (in mm) of the 37D mm line of gearmotors. The value of X is 24mm.

Pololu 12V 50-1 Gear Motor with Encoder- Click to Enlarge

Warning: Do not screw too far into the mounting holes as the screws can hit the gears. Manufacturer recommends screwing no further than 3mm (1/8") into the screw hole.

Specifications

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• Gear ratio: 50:1
• Free-run speed @ 12V: 200 rpm
• Free-run current @ 12V: 300 mA
• Stall current @ 12V: 5000 mA
• Stall torque @ 12V: 170 oz·in
• Free-run speed @ 6V: 100 rpm
• Free-run current @ 6V: 250 mA
• Stall current @ 6V: 2500 mA
• Stall torque @ 6V: 85 oz·in
• Lead length: 11 in

(This motor will run at 6 V but is intended for operation at 12 V)

Useful Links

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PDF File
Datasheet

Dimensions

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• Size: 37D x 66L mm
• Weight: 7.7oz
• Shaft diameter: 6mm

Supplier Product Code

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1444


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