> **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 for Standard Servo Splines (25T, 5.8mm) - 90×10mm, White, 2-Pack **Type:** Product page · **SKU:** POLOLU-4939 · **Brand:** [Pololu](https://core-electronics.com.au/brands/pololu-australia) **Page:** https://core-electronics.com.au/pololu-wheel-for-standard-servo-splines-25t-5-8mm-90-10mm-white-2-pack.html ([markdown](https://core-electronics.com.au/pololu-wheel-for-standard-servo-splines-25t-5-8mm-90-10mm-white-2-pack.html.md)) These white plastic wheels have silicone tires and measure 90 mm (3.54") in diameter. They mount onto standard servo splines with 25 teeth and a 5.8 mm... ## Pricing - **Price:** $19.75 (inc GST) — $17.95 AUD, exc GST - **Quantity discounts:** 10+ $17.24 (exc GST) · 25+ $16.70 (exc GST) ## Availability & dispatch - Available with a lead time — expect dispatch between Aug 17 and Aug 19. ## How to buy - **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=POLOLU-4939:1` (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-4939:1.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 **90 mm (3.54")** in diameter and are designed for use with standard servos with **5.8 mm diameter** splines with **25 teeth**, such as [FEETECH’s FS5106R](https://core-electronics.com.au/feetech-continuous-rotation-servo-fs5106r.html), [Power HD’s AR-3606HB](https://core-electronics.com.au/power-hd-continuous-rotation-servo-ar-3606hb.html), and [SpringRC’s SM-S4303R](https://core-electronics.com.au/springrc-sm-s4303r-continuous-rotation-servo.html) continuous rotation servos. The combination can serve as a small, inexpensive, and easy-to-control drive system for a miniature robot. The wheel presses onto the servo spline just like a typical servo horn, and the small screw included with the servo accessory pack for mounting servo horns should be used to hold the wheel in place. | \| [ ![](https://core-electronics.com.au/attachments/localcontent/0J10774_32352405fc8.jpg) ](https://core-electronics.com.au/attachments/localcontent/0J10774_292282b0a55.jpg) \| \|---\| \| 90 mm and 70 mm Pololu Wheels for Standard Servo Splines on [FEETECH’s FS5106R](https://core-electronics.com.au/feetech-continuous-rotation-servo-fs5106r.html) and [Power HD’s AR-3606HB](https://core-electronics.com.au/power-hd-continuous-rotation-servo-ar-3606hb.html) continuous rotation servos. \| | \| [ ![](https://core-electronics.com.au/attachments/localcontent/0J10776_28733fc6142.jpg) ](https://core-electronics.com.au/attachments/localcontent/0J10776_27055ac7062.jpg) \| \|---\|---\| \| 90 mm and 70 mm Pololu Wheels for Standard Servo Splines (25T, 5.8mm). \| | |---| Six mounting holes for #4 or M3 [screws](https://core-electronics.com.au/hardware/screws-nuts.html) make it possible to use the wheel with Pololu's [universal mounting hubs for 6mm, 8mm, and 1/4" shafts](https://core-electronics.com.au/hardware/mounts-hubs/hubs-clamps.html), enabling these wheels to be used with Pololu's [37D Metal Gearmotors](https://core-electronics.com.au/components/motors/metal-gearmotors/37d-mm.html) and [stepper motors](https://core-electronics.com.au/components/motors/stepper-motors.html) with compatible shafts. The slots in the six 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-80-10mm-90-10mm-pololu-wheels.html). | \| [ ![](https://core-electronics.com.au/attachments/localcontent/0J10786_16793413456.jpg) ](https://core-electronics.com.au/attachments/localcontent/0J10786_42723359024.jpg) \| \|---\| \| 90 mm Pololu Wheel for Micro Servos with a [universal mounting hub](https://core-electronics.com.au/pololu-universal-aluminum-mounting-hub-for-6mm-shaft-m3-holes-2-pack.html). \| | \| [ ![](https://core-electronics.com.au/attachments/localcontent/0J10787_2320432b207.jpg) ](https://core-electronics.com.au/attachments/localcontent/0J10787_44485bc0d08.jpg) \| \|---\|---\| \| 90 mm Pololu Wheel for Micro Servos with a [universal mounting hub](https://core-electronics.com.au/pololu-universal-aluminum-mounting-hub-for-6mm-shaft-m3-holes-2-pack.html) and [37D metal gearmotor](https://core-electronics.com.au/components/motors/metal-gearmotors/37d-mm.html). \| | |---| **Other wheel options** Pololu have similar wheels available in different sizes and colors and with different spline compatibilities: | [ ![](https://core-electronics.com.au/attachments/localcontent/0J10783_47647308255.jpg) ](https://core-electronics.com.au/attachments/localcontent/0J10783_1988104c6ec.jpg) | |---| | Pololu Wheels for Standard and Micro Servos – 40, 60, 70, and 90 mm diameters. | Pololu also carry an array of wheels compatible with 3mm D shafts: | [ ![](https://core-electronics.com.au/attachments/localcontent/0J6310_32877e2681d.jpg) ](https://core-electronics.com.au/attachments/localcontent/0J6310_1852999869f.jpg) | |---| | Black Pololu Wheels with 90, 80, 70, 60, 40, and 32 mm diameters (other colors available). | | [ ![](https://core-electronics.com.au/attachments/localcontent/0J2763_38397a54d4f.jpg) ](https://core-electronics.com.au/attachments/localcontent/0J2763_1996909c6d1.jpg) | |---| | Pololu Wheels with 90, 80, 70, and 60 mm diameters in three colors: blue, red, and yellow. | **Dimensions** | Size: | 90 × 10 mm | |---|---| | Weight: | 22 g[1](https://core-electronics.com.au/#note1) | **General specifications** | Shaft type: | 25T, 5.8 mm diameter servo spline | |---|---| | Color: | white | **Identifying markings** | Molded part dev codes: | whe07a | |---|---| **Notes:** 1 Per wheel, including tire.**File downloads** - **[Dimension diagrams for Pololu Servo Wheels](https://core-electronics.com.au/attachments/localcontent/pololu-servo-wheel-dimensions_119899fe413.pdf) (1MB pdf)** This file contains dimension diagrams for the 40×7mm, 60×8mm, 70×8mm, and 90×10mm Pololu Servo Wheels. - **3D model of Pololu Wheel for Standard Servo Splines 90×10mm (9MB step)** ## Images - [Product image 1](https://core-electronics.com.au/media/catalog/product/i/m/image_11775.jpg)