Vacuum Ball Castor W420
The Vacuum Ball Castor W420 is a compact omnidirectional support wheel designed for robotics and mobile platforms. It features a durable steel ball housed in a nylon frame, allowing smooth 360° movement with minimal friction. Commonly used as a balancing wheel in 2WD and 4WD robot chassis, the W420 improves stability, maneuverability, and turning performance. Its lightweight design and simple mounting system make it ideal for Arduino, Raspberry Pi, STEM, and DIY robotics projects. Application | Small Robot Chassis & Mobile Platforms |
- DIY Automation Projects
- Raspberry Pi Mobile Robots 0search8
Specification:
| Fixed Frame Pitch | 40mm |
|---|---|
| Weight | 25g |
| Mounting Hole | 3 mm |
| Colour | White |
| Shipping Weight | 0.02 kg |
| Shipping Dimensions | 8 × 7 × 2 cm |






