> **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

# 2mm Pitch GT2 Pinion Timing Pulley (8mm REX™ Bore, 20 Tooth)

**Type:** Product page · **SKU:** GB-3422-4008-0020 · **Brand:** [goBilda](https://core-electronics.com.au/brands/gobilda)
**Page:** https://core-electronics.com.au/2mm-pitch-gt2-pinion-timing-pulley-8mm-rex-bore-20-tooth.html ([markdown](https://core-electronics.com.au/2mm-pitch-gt2-pinion-timing-pulley-8mm-rex-bore-20-tooth.html.md))

Punch up the precision with a GT2 Pinion Timing Pulley! Fine-toothed to drive 6mm wide GT2 belt in high-precision applications like.....

## Pricing

- **Price:** $13.45 (inc GST) — $12.23 AUD, exc GST
- **Quantity discounts:** 10+ $11.62 (exc GST) · 25+ $11.00 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 3 today, and up to 1100 more in 7–10 days.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=GB-3422-4008-0020:1` (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.
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- **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

Punch up the precision with a GT2 Pinion Timing Pulley! Fine-toothed to drive 6mm wide GT2 belt in high-precision applications like printers, sliders, and XY tables, this dual-material pulley rocks steel where you need it—in its flange, and the barrel housing the threads of its set-screw hole—while still feeling slim on the scales due to the remainder of the pulley being aluminum.

This 8mm REX™ bore pulley can attach to 8mm REX™ shafting to help you implement positive drive in your precision belt operations. 8mm REX™ is the staple shaft profile of goBILDA®; you can find it throughout the build system, including in [gear motors](https://www.gobilda.com/motors).

This pulley rocks two build-in shims: one on each end! This means you’ll always be able to run it against a bearing without fear of contacting the bearings’ outer race.

### Downloads

- [ STEP File ](https://core-electronics.com.au/attachments/localcontent/3422-4008-0020_9060532d4bd.zip)
- [ Spec Sheet ](https://core-electronics.com.au/attachments/localcontent/3422-4008-0020_spec-sheet_15024542ac8.pdf)

### Specs

| \# of teeth | 20 |
|---|---|
| Material | Aluminum and Steel |
| Weight | 10g |
| Bore | 8mm REX™ |
| Pitch | 2mm (GT2) |

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/G/B/GB-3422-4008-0020-1.jpg)