





Durable 6mm lengthen coupling (30mm) for securely connecting robot smart car wheels to motor shafts. Made of high-quality aluminum alloy, ideal for extended axle applications and precise wheel alignment in robotics and DIY vehicle projects.
The 6MM Lengthen Coupling for Robot Smart Car Wheel is a precision-engineered mechanical connector designed to extend motor shafts and securely attach wheels in robotic vehicle systems. With a shaft bore of 6mm and an extended body length of 30mm, this coupling is ideal for applications requiring additional spacing or clearance between the motor and wheel.
Constructed from high-strength aluminum alloy, this coupling ensures durability, rust resistance, and minimal weight. Its secure locking design—typically with dual set screws—prevents slippage during high-speed or torque-demanding operations, making it suitable for both educational and commercial-grade robotics projects.
Shaft Diameter: 6mm
Coupling Length: 30mm
Material: Aluminum alloy
Color: Silver or Black (varies by batch)
Fixing Method: Dual set screws (included)
Inner Diameter (bore): 6mm
Outer Diameter: ~10mm (may vary slightly)
Weight: ~10g