Caster Wheel – Omni-Directional Support Wheel for Robots & DIY Cars
The caster wheel is a lightweight, free-rotating support wheel designed to provide smooth and stable movement in mobile robotic platforms. Used as a third or fourth wheel in 2WD or 4WD robotic cars, it balances the structure while allowing free rotation in all directions without resistance.
It is ideal for use with Arduino-based robots, line followers, obstacle avoiders, and other STEM and DIY robotic kits.
 
Key Features:
360° Free Rotation
Provides smooth and frictionless movement in any direction.
Lightweight and Compact
Doesn’t overload the chassis; perfect for small robot platforms.
Durable Construction
Made from metal and plastic for long-lasting performance on various surfaces.
Easy to Mount
Comes with mounting holes for quick installation on acrylic, plastic, or metal chassis.
Stable Support
Prevents wobbling, tipping, and improves movement balance.
 
Applications:
Arduino-based robotic cars
Line followers and maze-solving bots
2WD or 4WD chassis support
RC vehicle stability
DIY robotic platforms and educational kits
 
Specifications:
Material: Metal bracket + plastic ball wheel
Color: Silver (bracket) with white/black wheel (varies)
Wheel Type: Ball-type or roller-type (depending on model)
Mounting Holes: 3–4 screw holes for easy installation
Weight Capacity: Suitable for lightweight robotic platforms
 
Dimensions:
Height: 23mm
 
Weight: Approx. 15g
 
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