34:1 Metal Gearmotor 25Dx52L mm HP 6V with 48 CPR Encoder

34:1 Metal Gearmotor 25Dx52L mm HP 6V with 48 CPR Encoder
Pololu item #: 2273 14 in stock

Price break Unit price (US$)
1 36.95
10 33.26


backorders allowed

This gearmotor consists of a high-power, 6 V brushed DC motor combined with a 34.014:1 metal spur gearbox, and it has an integrated 48 CPR quadrature encoder on the motor shaft, which provides 1632.672 counts per revolution of the gearbox’s output shaft. The gearmotor is cylindrical, with a diameter just under 25 mm, and the D-shaped output shaft is 4 mm in diameter and extends 12.5 mm from the face plate of the gearbox.

Key specs at 6 V: 285 RPM and 450 mA free-run, 60 oz-in (4.3 kg-cm) and 6.5 A stall.

You can use the following selection boxes to see all of our 25D metal gearmotor versions with integrated encoders:

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We also have versions without encoders:

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 Description Specs (10) Pictures (7) Resources (1) FAQs (2) On the blog (0) 

File downloads

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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