Small robot drive systems
Metal reduction gears and a D-shaft suit wheel drives; calculate required torque and duty cycle.
Engineering inferenceProduct image unavailable
Pololu
Pololu 20.4:1 25D HP 12V Gearmotor
A 12 V, 20.4:1 brushed DC gearmotor with 500 RPM no-load speed.
3203MotorPrice$32.95Pololu · unknown
Buy at Pololu Motor essentials
Facts about the complete product. Unknown values remain open design questions.
- Rated voltage
- 12 V
- No-load speed
- 500 RPM
- Stall torque
- 0.72569 N·m
- Gear reduction
- 20.4:1
- Shaft diameter
- 4 mm
- Encoder
- none
A good fit for
Guidance to help you shortlist. The basis is shown for each recommendation.
Higher power mechanisms
Higher no-load speed and extrapolated stall torque trade off against a larger driver-current requirement.
Engineering inferenceNo-load speed, rated performance and stall limits describe different operating points. A stall specification is not a continuous operating rating.
Additional engineering notes
Stall torque/current cannot be used as continuous ratings. Body dimensions exclude 12.5 mm projecting shaft and terminal protrusions. No encoder; encoder-equipped siblings are different products.
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FAQ
Pololu 20.4:1 25D HP 12V Gearmotor questions
How much does the Pololu 20.4:1 25D HP 12V Gearmotor cost?
From $32.95 at Pololu. Prices are observed unit prices before tax and shipping.
What are the Pololu 20.4:1 25D HP 12V Gearmotor dimensions?
50 × 25 × 25 mm.
Where does this Pololu 20.4:1 25D HP 12V Gearmotor data come from?
Every value in this record is traced to a source — 2 documents including the board and chip datasheets — with the page and table cited per value. Unknowns are left explicit, never guessed.
Data & sources
Where these values come from
- Pololu 3203 product specifications — Pololu
- Pololu 3203 dimensions and performance — Pololu