Main Shaft Drive Assembly for WLtoys XK K270 UH-60L Black Hawk
Eliminate Vibrations and Gyro Interference
Even a microscopic bend in the main shaft can cause high-frequency vibrations that confuse the flight controller, leading to "toilet bowl effect" or altitude hold issues. This WLtoys K270 Main Shaft assembly solves drivetrain instability, providing a perfectly true axis of rotation. Replacing a stressed shaft restores the surgical precision needed for smooth 4CH scale flight and protects your main motor from premature wear. Ships worldwide.
Product Highlights
Hardened Stainless Steel: Engineered to resist bending during high-torque brushless maneuvers and rough landings.
Pre-Drilled Precision: Features factory-aligned holes for the rotor head bolt and main gear pin, ensuring perfect mechanical timing.
Ultra-Smooth Finish: Polished surface reduces friction within the main frame bearings, leading to quieter operation and longer battery life.
Vibration Dampening: Ensures the 4-blade rotor head spins on a centered axis, crucial for maintaining scale flight aesthetics.
Bearing Check: Before installing the new shaft, spin the frame bearings with your finger; if they feel "gritty," replace them at the same time for the best results.
Main Gear Pin: Ensure the locking pin is centered when securing the main gear to the shaft to prevent it from rubbing against the helicopter's frame.
Zero Play: Adjust the locking collar so there is no vertical "shucking" of the shaft, but ensure it can still spin freely without binding.
Support & Warranty
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