> **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 # Pololu Wheel 70x8mm Pair - Black **Type:** Product page · **SKU:** POLOLU-1425 · **Brand:** [Pololu](https://core-electronics.com.au/brands/pololu-australia) **Page:** https://core-electronics.com.au/pololu-wheel-70x8mm-pair-black.html ([markdown](https://core-electronics.com.au/pololu-wheel-70x8mm-pair-black.html.md)) These black plastic wheels press-fit onto the 3mm D shafts on many of Pololu's motors, including Pololu's micro metal gearmotors and Pololu's plastic gearmotors with 3mm D-shafts, to make a nice drive solution for small robots. The wheels have silicone tires and measure 70 mm (2.75″) in diameter. Two additional mounting holes for 4-40 screws make it possible to use the wheel with several of Pololu's universal mounting hubs. The wheels are sold in pairs. ## Pricing - **Price:** $12.40 (inc GST) — $11.27 AUD, exc GST - **Quantity discounts:** 10+ $10.82 (exc GST) · 25+ $10.48 (exc GST) ## Availability & dispatch - In stock, ships same business day if ordered before 2PM (Australia/Sydney). - We can dispatch 2 today, and up to 450 more in 4–7 days. ## How to buy - **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=POLOLU-1425:1` (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/POLOLU-1425:1.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 These wheels are great for robotics, custom RC vehicles, or any other project you need to get rolling. They measure **70 mm (2.75")** in diameter and are designed to press-fit securely onto D output shafts with a diameter of 3 mm. They are compatible with many of Pololu's gearmotors, including Pololu's [micro metal gearmotors](https://core-electronics.com.au/components/motors/metal-gearmotors/micro.html) and Pololu's [mini plastic gearmotors](https://core-electronics.com.au/search/?q=mini+plastic+gearmotor). Two mounting holes for #4 or M3 [screws](https://core-electronics.com.au/hardware/screws-nuts.html) make it possible to use the wheel with any of Pololu's [universal mounting hubs](https://core-electronics.com.au/hardware/mounts-hubs/hubs-clamps.html) for those screw sizes, enabling these wheels to be used with Pololu's [larger metal gearmotors](https://core-electronics.com.au/category/51/pololu-metal-gearmotors) and [stepper motors](https://core-electronics.com.au/components/motors/stepper-motors.html). The slots in the five spokes fit #2 or M2 screws and allow additional accessories to be mounted to the wheel such as decorations or parts of an encoder system. The included silicone tires, which feature horizontal treads for improved traction, are also [available separately](https://core-electronics.com.au/silicone-tire-pair-for-60-8mm-70-8mm-pololu-wheels.html). The pictures below show this wheel with a [universal mounting hub for 4mm shafts](https://core-electronics.com.au/pololu-universal-aluminum-mounting-hub-for-4mm-shaft-4-40-holes-2-pack.html) installed so it can work with Pololu's [20D](https://core-electronics.com.au/components/motors/metal-gearmotors.html) or [25D](https://core-electronics.com.au/components/motors/metal-gearmotors/25d-mm.html) metal gearmotors. | \| [ ![](https://core-electronics.com.au/attachments/localcontent/0J10378_13482cdd73a.jpg) ](https://core-electronics.com.au/attachments/localcontent/0J10378_38457771d7e.jpg) \| \|---\| \| Black Pololu Wheel 70×8mm on a Pololu 20D mm Metal Gearmotor. \| | \| [ ![](https://core-electronics.com.au/attachments/localcontent/0J10379_15211e9e4a1.jpg) ](https://core-electronics.com.au/attachments/localcontent/0J10379_483853ede31.jpg) \| \|---\|---\| \| Pololu Universal Mounting Hub for 4mm Shaft mounted to Pololu Wheel 70×8mm. \| | |---| **Details for item #1425** | [ ![](https://core-electronics.com.au/attachments/localcontent/0J10362_28411f06e01.jpg) ](https://core-electronics.com.au/attachments/localcontent/0J10362_16800549042.jpg) | |---| | Parts included with Pololu Wheel 70×8mm Pair – Black. | This is the **black** version of Pololu's 70×8mm wheel pair. **Dimensions** | Size: | 70 x 8 mm | |---|---| | Weight: | 0.5 oz[1](https://core-electronics.com.au/#note1) | | Shaft diameter: | 3 mm[2](https://core-electronics.com.au/#note2) | **General specifications** | Color: | black | |---|---| **Notes:** 1 Per wheel, including tire. 2 D-shaped hole for press fit onto Pololu Micro Metal Gearmotors and Mini Plastic Gearmotors.**File downloads** - **Dimension diagrams for Pololu Wheels (2MB pdf)** This file contains dimension diagrams for the 32×7mm, 40×7mm, 60×8mm, 70×8mm, 80×10mm, and 90×10mm Pololu Wheels with 3mm D-hubs as well as the 80×10mm Pololu Multi-Hub Wheels. - **3D models of Pololu Wheels 70×8mm (3MB zip)** This file contains 3D models (in the step file format) of the Pololu Wheels 70×8mm. ## Images - [Product image 1](https://core-electronics.com.au/media/catalog/product/p/o/pololu_wheel_70x8mm_pair_black__pololu_1425__00.jpg)