Universal Joint Shaft Coupling, 12mm 24mm 51mm Keyway Motor

Spec: Features: 100% brand new and . This joint or coupling connects rods whose axes are inclined to each other. Made of premium metal material, it is durable and has long service life. It is commonly used for shafts that transmit motion. Widely used for connecting model cars, model ships, robots, etc. Specification: Material: Metal Inner Diameter: 12mm / 0.5in Outer Diameter: 24mm / 0.9in Length: 51mm / 2in Weight: 116g / 4.1oz (approx.) Package list: 1 * Universal Joint 2 * Screws

• Anti-Slip Keyway Lock Mechanism: The 12mm bore and integrated keyway grip shafts firmly, eliminating rotational slippage during high-speed starts and stops in model cars or robotic arms.
• Angular Misalignment Tolerance: This motor connector transmits constant motion at angles from 15° to 45°, solving the alignment stress issue in 3D printer Z-axis screws and ship drive shafts.
• 3000 RPM High-Rotation Stability: Built to withstand continuous operation up to 3000 RPM, the metal construction resists deformation under torque, preventing the wobble common in DIY planetary gearboxes.
• Plug-and-Play Steering Assembly: This 51mm long shaft coupler includes two locking screws for immediate mounting onto 12mm rods, replacing complex U-joint fabrication in custom robot steering .
• Direct Torque Path for Mixed Systems: Connect mismatched motor and axle heights in CNC machines or RC crawlers, bridging gaps without the power loss associated with flexible jaw couplings.