20mm Height Metal Caster Bearing Wheel

The 20mm Height Metal Caster Bearing Wheel is a compact and durable support wheel commonly used in robotics, DIY vehicles, smart cars, and automation projects. Designed with a smooth rolling metal ball bearing mechanism, it provides excellent balance and multidirectional movement for mobile robotic platforms.

This caster wheel is ideal as a front or rear support wheel in 2WD, 3WD, and 4WD robot chassis systems.

Key Features

• 360-Degree Free Movement: Allows smooth multidirectional rolling for robotic mobility
• Compact 20mm Height: Suitable for low-profile robot chassis designs
• Metal Ball Bearing Design: Provides smooth motion with reduced friction
• Strong Metal Construction: Durable and wear-resistant body
• Easy Installation: Pre-drilled mounting holes for quick attachment
• Stable Support Wheel: Improves balance and maneuverability of robots
• Lightweight Design: Minimal load on motors and chassis

Technical Specifications

• Product Type: Metal Caster Bearing Wheel
• Height: 20mm
• Material: Metal housing with steel ball bearing
• Wheel Type: Omnidirectional caster ball
• Mounting Type: Screw mount
• Rotation: 360-degree free rolling movement
• Load Capacity: Suitable for small robotic platforms
• Surface Compatibility: Smooth indoor surfaces recommended

How It Works

The caster uses a free-rotating metal ball bearing mounted inside a metal housing:

• The ball rotates freely in any direction
• Robot movement automatically changes caster direction
• Provides smooth support while driven wheels control motion

This design reduces drag and improves turning efficiency.

Applications and Uses

• Line following robots
• Obstacle avoidance robots
• Smart robotic car chassis
• DIY RC vehicles
• Educational robotics projects
• Automation platforms and mobile bots

Advantages of Metal Caster Bearing Wheels

• Smooth and low-friction movement
• Compact and durable design
• Easy to mount on robot chassis
• Improves robot balance and stability
• Maintenance-free operation

Installation and Usage Tips

• Install on a flat and rigid surface for best performance
• Ensure caster height matches drive wheel height
• Keep surface clean to avoid dust buildup around the ball
• Use proper mounting screws for stable attachment

Note: Images are for illustration purposes only.