Rotatable Universal Joint Shaft Adapter Kit 8mm To 5mm Inner Diameter U Joint Couplings For Motors Models And Robot Builds Includes M4 Screws And Wrench 2 Pcs

Rotatable Universal Shaft Coupler 8mm to 5mm Inner Dia
✔️ 2 Pcs universal joints, 14mm OD, 34mm length, M4 screws included

This rotatable universal shaft set includes two U joint couplers with M4 screws and spanners. It’s designed to connect motor shafts to wheels, gears, or other drive components in model cars, ships, and robotics projects, offering flexible angular movement and strong torque transmission.

✅ Outer diameter: 14mm (0.55 Inch)
✅ Length: 34mm (1.34 Inch)
✅ Inner diameter: 8mm to 5mm (0.31 Inch to 0.20 Inch)
✅ Material: 45# steel with nickel plating
✅ Rotation angle: max 45 degrees
✅ Thread size: M4
✅ Pack contents: 2 Pcs universal joints, 4 Pcs screws, 2 Pcs spanners

💡 What is a universal joint shaft used for in hobby robotics and model builds? This handy connector helps transmit torque between motors and wheels with flexible alignment. - transmit torque between motors and drive components in model cars, ships, and robots - provide handy alignment and flexible angle adjustments for smooth operation - supports common 8mm to 5mm shaft sizes with M4 mounting for easy hobby builds

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