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4mm to 6mm Universal Joint Motor Coupling – Precision Shaft Connector for RC Cars & Robotics

£3.99

The Fastrax fuel bottle makes transporting the day’s fuel both easy and safe. With a capacity of 350cc there should be enough fuel for a few hours worth of running. Make sure you replace the rubber cap on the bottle at the end of the day and the fuel will be good for the next race.

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Description

🔩 4mm to 6mm Universal Joint Coupling – Precision Shaft Connector

Upgrade your drivetrain with this high-quality 4mm to 6mm universal joint coupling, designed for smooth power transmission even in misaligned setups. Ideal for RC vehicles, robotics, and precision mechanical applications, this coupling ensures reliable performance under demanding conditions.

⚙️ Key Features:

  • Size Compatibility: Connects 4mm shaft to 6mm shaft

  • Universal Joint Design: Allows for angular misalignment without loss of efficiency

  • High-Quality Material: Precision-machined from durable metal for long-lasting use

  • Secure Fit: Dual set screws provide a firm, slip-free connection

  • Smooth Operation: Reduces vibration and improves drivetrain efficiency

🚗 Applications:

  • RC cars and trucks

  • Robotics and DIY projects

  • Motor-to-shaft connections

  • CNC and mechanical systems

🛠️ Benefits:

  • Handles slight misalignment with ease

  • Improves power transfer and reduces wear

  • Compact design for tight installations

Whether you’re upgrading an RC drivetrain or building a custom mechanical system, this 4mm–6mm universal coupling delivers strength, flexibility, and precision where it matters most.

Specifications:

  • Bore Size: 4mm → 6mm

  • Overall Length: ~24mm

  • Outer Diameter: ~11mm

  • Material: Stainless Steel / Hardened Steel

  • Grub Screw Size: M3 (3mm hex/set screws)

  • Fixing Method: Dual grub screws on each side

  • Type: Universal Joint (U-Joint) Coupling

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