# Pololu #4846 75:1 25D Gearmotor HP 12V

> Pololu #4846 is a 12 V high-power (HP) brushed DC 25D metal gearmotor with 74.83:1 spur reduction: 130 rpm and 0.30 A no-load, 22 kg·cm / 5.0 A stall (extrapolated), 37 % peak efficiency, Ø25 mm × 69 mm, 4 mm D-shaft 12.5 mm long, two M3 face holes, 104 g, and a 48 CPR Hall quadrature encoder on the motor shaft (3591.84 counts per output revolution).

- Manufacturer: Pololu
- Part number: 4846
- Category: Motors
- Canonical page: https://www.xirkit.io/products/pololu-4846-75-1-25d-gearmotor-hp-12v-826b
- Pinout: https://www.xirkit.io/products/pololu-4846-75-1-25d-gearmotor-hp-12v-826b/pinout
- Structured JSON: https://www.xirkit.io/products/pololu-4846-75-1-25d-gearmotor-hp-12v-826b/data.json
- Source: Xirkit structured parts catalog — every value traced to a cited document; unknowns are explicit.

## Key specifications

| Property | Value |
| --- | --- |
| Motor type | gearmotor |
| Rated voltage | 12 V |
| Stall torque | 2.157 N·m |
| No-load speed | 130 rpm |
| Gear ratio | 74.83:1 |
| Shaft diameter | 4 mm |
| Encoder | Hall quadrature encoder; 48 CPR at the motor shaft, 3591.84 CPR at the output shaft |
| Dimensions | 25 × 25 × 81.5 mm |

## Pinout (6 pins, 0 with electrical limits)

| Pin | Position | Kind | Chip pad | Functions | VIH | VIL | VOH | VOL | IOH | IOL | 5 V tolerant |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Red | 1x6 female 2.54 mm header | motor plus | — | red | — | — | — | — | — | — | — |
| Black | 1x6 female 2.54 mm header | motor minus | — | black | — | — | — | — | — | — | — |
| Green | 1x6 female 2.54 mm header | ground | — | ground | — | — | — | — | — | — | — |
| Blue | 1x6 female 2.54 mm header | supply | — | blue | — | — | — | — | — | — | — |
| Yellow | 1x6 female 2.54 mm header | signal | — | yellow | — | — | — | — | — | — | — |
| White | 1x6 female 2.54 mm header | signal | — | white | — | — | — | — | — | — | — |

## Where to buy

| Supplier | Price | Stock | Checked | URL |
| --- | --- | --- | --- | --- |
| www.pololu.com | 56.95 USD | in_stock | 2026-10-02 | https://www.pololu.com/product/4846 |

## FAQ

**How much does the Pololu #4846 75:1 25D Gearmotor HP 12V cost?**

From $56.95 at www.pololu.com. Prices are observed unit prices before tax and shipping.

**What are the Pololu #4846 75:1 25D Gearmotor HP 12V dimensions?**

25 × 25 × 81.5 mm. A STEP model is available for enclosure fit checks.

**Where does this Pololu #4846 75:1 25D Gearmotor HP 12V 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.

## Sources

- [Pololu #4846 75:1 25D Gearmotor HP 12V datasheet](https://www.pololu.com/file/0J1829/pololu-25d-metal-gearmotors-rev-2-0.pdf)
- [www.pololu.com listing](https://www.pololu.com/product/4846)

## Part graph

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