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HP 12V Motor with 48 CPR Encoder for 25D mm Metal Gearmotors (No Gearbox)

Pololu item #: 4840 13 in stock
Brand: Pololu
Status: Active and Preferred 
RoHS 3 compliant
 Free shipping in USA 

Price break Unit price (US$)
1 23.95
10 21.56


backorders allowed

This is the motor and encoder portion of our high-power (HP), 12V 25D mm metal gearmotors with 48 CPR encoders. It does not include a gearbox, but the pinion gear on the output shaft works with all of our 25D mm gearmotor gearboxes, so this can be used as a replacement motor or encoder for those gearboxes.

Key specifications:

voltage no-load performance stall extrapolation
12 V 10200 RPM, 150 mA 0.4 kg⋅cm (5.5 oz⋅in), 5.6 A

You can use the following selection boxes to choose from all of our 25D metal gearmotor versions:

Alternatives available with variations in these parameter(s): gear ratio motor type encoders? Select variant…

 Description Specs (13) Pictures (5) Resources (4) FAQs (1) On the blog (0) 

File downloads

Dimension diagram of the Pololu 25D Metal Gearmotors (171k pdf)
3D models of 25D mm gearmotors (10MB zip)
This file contains 3D models (in the step file format) of the 25D mm gearmotors with and without encoders.
Modifying the Wild Thumper to use motors with encoders (3MB pdf)

Customer Richard Nguyen has documented his work modifying the Wild Thumper chassis to use 25D motors with encoders in place of the chassis’s included motors.

Note: This is not an easy modification, and the chassis can be damaged if it is not done properly, so we generally recommend against it, and we can only provide very limited support for those who want to attempt it. The manufacturer did not intend for the chassis to be modified in this way, and we do not know how well such a modification will work out.

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Related Categories

12V High-Power (HP) 25D mm Gearmotors
25D Metal Gearmotors
Brushed DC Motor Controllers
Brushed DC Motor Drivers
Robot Controllers
Current Sensors
37D Metal Gearmotors
Micro Metal Gearmotors
Wild Thumper All-Terrain Chassis
Premium Jumper Wires
Wires with Pre-Crimped Terminals
Crimp Connector Housings
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