> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# 5204 Series Yellow Jacket Planetary Gear Motor (13.7:1 Ratio, 80mm Length 8mm REX Shaft, 435 RPM, 3.3 - 5V Encoder)

**Type:** Product page · **SKU:** GB-5204-8002-0014 · **Brand:** [goBilda](https://core-electronics.com.au/brands/gobilda)
**Page:** https://core-electronics.com.au/5204-series-yellow-jacket-planetary-gear-motor-1371-ratio-80mm-length-8mm-rex-shaft-435-rpm-33-5v-encoder.html ([markdown](https://core-electronics.com.au/5204-series-yellow-jacket-planetary-gear-motor-1371-ratio-80mm-length-8mm-rex-shaft-435-rpm-33-5v-encoder.html.md))

A 13.7:1 Ratio, 435RPM 5204 Series Yellow Jacket Gear Motor with Encoder

## Pricing

- **Price:** $104.95 (inc GST) — $95.41 AUD, exc GST
- **Quantity discounts:** 10+ $90.64 (exc GST) · 25+ $85.87 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Aug 18 and Aug 21.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=GB-5204-8002-0014:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart.
- **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/GB-5204-8002-0014:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.)
- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

### Downloads

- [ STEP File ](https://core-electronics.com.au/attachments/localcontent/5204-8002-0014_39324359201.zip)
- [ Spec Sheet ](https://core-electronics.com.au/attachments/localcontent/5204-8002-0014_spec_sheet_4107291304e.pdf)

### Specs

| Motor Size | RS-555 |
|---|---|
| Motor Type | Brushed DC |
| Nominal Voltage | 12VDC |
| Output Shaft | 8mm REX™, 80mm Length |
| Gearbox Style | Planetary |
| Gear Ratio | 13.7:1 |
| Gear Ratio Formula | (((1+(46/17))) \* (1+(46/17))) |
| Gear Material | Steel |
| No-Load Speed @ 12VDC | 435 RPM |
| No-Load Current @12VDC | 0.25A |
| Stall Current @12VDC | 9.2A |
| Stall Torque @12VDC | 18.7 kg.cm (260 oz-in) |
| Wire Length | 470mm (including connectors) |
| Wire Gauge | 18AWG |
| Motor Connector Type | 3.5mm FH-MC Bullet Connectors |
| Encoder Connector Type | 4-Pos JST XH \[FH-MC\] |
| Encoder Type | Relative, Quadrature |
| Encoder Sensor Type | Magnetic (Hall Effect) |
| Encoder Voltage Range | 3.3 - 5VDC |
| Encoder Resolution | 384.5 PPR at the Output Shaft |
| Encoder Resolution Formula | ((((1+(46/17))) \* (1+(46/17))) \* 28) |
| Weight | 435g |
| IP | Patented |

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/G/B/GB-5204-8002-0014-1.jpg)