# 20mm Height Metal Caster Bearing Wheel

**Type:** Product page · **SKU:** ADA3948 · **Brand:** [Adafruit](https://core-electronics.com.au/brands/adafruit-australia)
**Page:** https://core-electronics.com.au/20mm-height-metal-caster-bearing-wheel.html ([markdown](https://core-electronics.com.au/20mm-height-metal-caster-bearing-wheel.html.md))

Get your 'bot rolling with this durable and smooth steel ball caster. Adafruit like the size (not too big, not too small) and surprisingly fluid motion of this caster...

## Pricing

- **Price:** $7.25 (inc GST) — $6.59 AUD, exc GST
- **Quantity discounts:** 10+ $6.39 (exc GST) · 50+ $6.26 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Sep 03 and Sep 07.

## Description

Get your 'bot rolling with this durable and smooth steel ball caster. Adafruit like the size (not too big, not too small) and surprisingly fluid motion of this caster. It's also really easy to attach, with two screw mounts that will allow you to attach it to any chassis material. **Note that it doesn't come with any mounting hardware**, use 4-40 or M3 screws to attach to whatever you like.

[Matches perfectly with Adafruit's purple metal chassis](https://core-electronics.com.au/purple-aluminum-chassis-for-tt-motors-2wd.html), but can be used for anything where you want 20mm of height.

[We also have a smaller ball caster, with 20mm height, for little bots!](https://core-electronics.com.au/16mm-height-metal-caster-bearing-wheel.html)

## Technical Details

- Wheel Diameter: 15.7mm
- Overall Height: 20mm
- Fixed Hole Diameter (below bearing wheel): 3.1mm
- Mounting Hole Diameter: 4mm
- Mounting Holes Distance: 40mm
- Overall Weight: 19.7g

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/a/d/ada3948-1.jpg)