# goBILDA Saturn 5303-2402-0188

> goBILDA 5303-2402-0188 Saturn is a 24 V RS-560 brushed DC planetary gearmotor with 188:1 steel gearing: 100 rpm no-load, 118.2 kg·cm rated torque at 82 rpm / 11 A and 658 kg·cm stall (60 A) at 24 V, 8 mm REX shaft 23.5 mm long, Ø38.5 mm head, 146.5 mm long, 576 g, magnetic quadrature encoder at 5281.1 PPR on the output shaft.

- Manufacturer: goBILDA
- Part number: 5303-2402-0188
- Category: Motors
- Canonical page: https://www.xirkit.io/products/gobilda-saturn-5303-2402-0188-be21
- Pinout: https://www.xirkit.io/products/gobilda-saturn-5303-2402-0188-be21/pinout
- Structured JSON: https://www.xirkit.io/products/gobilda-saturn-5303-2402-0188-be21/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 | 24 V |
| Rated torque | 11.591 N·m |
| Stall torque | 64.528 N·m |
| Rated speed | 82 rpm |
| No-load speed | 100 rpm |
| Rated current | 11 A |
| Gear ratio | 188:1 |
| Shaft diameter | 8 mm |
| Encoder | relative magnetic Hall-effect quadrature encoder, 5281.1 PPR at output shaft |
| Dimensions | 38.5 × 38.5 × 170 mm |

## Pinout (2 pins, 0 with electrical limits)

| Pin | Position | Kind | Chip pad | Functions | VIH | VIL | VOH | VOL | IOH | IOL | 5 V tolerant |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| MOTOR | 3.5 mm FH-MC bullet connectors | motor plus | — | motor | — | — | — | — | — | — | — |
| ENC | 4-position JST XH [FH-MC] | signal | — | enc | — | — | — | — | — | — | — |

## Where to buy

| Supplier | Price | Stock | Checked | URL |
| --- | --- | --- | --- | --- |
| www.gobilda.com | 59.99 USD | in_stock | 2026-10-01 | https://www.gobilda.com/5303-series-saturn-planetary-gear-motor-188-1-ratio-24mm-length-8mm-rex-shaft-100-rpm-3-3-5v-encoder/ |

## FAQ

**How much does the goBILDA Saturn 5303-2402-0188 cost?**

From $59.99 at www.gobilda.com. Prices are observed unit prices before tax and shipping.

**What are the goBILDA Saturn 5303-2402-0188 dimensions?**

38.5 × 38.5 × 170 mm. A STEP model is available for enclosure fit checks.

**Where does this goBILDA Saturn 5303-2402-0188 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

- [goBILDA Saturn 5303-2402-0188 datasheet](https://www.gobilda.com/5303-series-saturn-planetary-gear-motor-188-1-ratio-24mm-length-8mm-rex-shaft-100-rpm-3-3-5v-encoder/)
- [www.gobilda.com listing](https://www.gobilda.com/5303-series-saturn-planetary-gear-motor-188-1-ratio-24mm-length-8mm-rex-shaft-100-rpm-3-3-5v-encoder/)

## Part graph

### Alternatives (by use case)

- [goBILDA Saturn 5304-8002-0100](https://www.xirkit.io/products/gobilda-saturn-5304-8002-0100-237a) — Both serve robot joints and actuation — check the trade-offs; $59.99 vs $61.99
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- [goBILDA Saturn 5304-8002-0188](https://www.xirkit.io/products/gobilda-saturn-5304-8002-0188-5787) — Both serve robot joints and actuation — a direct substitute; $59.99 vs $61.99
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- [goBILDA Saturn 5303-2402-0139](https://www.xirkit.io/products/gobilda-saturn-5303-2402-0139-fd29) — Both serve robot joints and actuation — check the trade-offs; $59.99 vs $59.99
