Steel Main Shaft Replacement for WLtoys K150 AS350 Squirrel RC Helicopter

Eliminate Rotor Vibration

Is your WLtoys K150 experiencing unusual wobbling or losing power efficiency during flight? A bent or worn main shaft is often the hidden cause of severe rotor vibration and poor flight stability. This high-precision steel main shaft is designed specifically for the AS350 Squirrel scale model to solve these performance issues, ensuring your rotor head spins with perfect concentricity for a smooth and quiet flying experience. Ships worldwide.

Product Highlights

• High-Tensile Steel Material: Crafted from hardened steel to provide maximum rigidity and resistance against bending during high-RPM brushless operation.

• Precision Machined Ports: Features perfectly aligned pre-drilled holes for secure mounting of the main gear and rotor head assembly.

• Friction-Reducing Surface: Finished with a smooth surface to minimize wear on the main frame bearings, extending the lifespan of your helicopter's drive system.

• Exact Scale Fit: Guaranteed compatibility with the WLtoys K150's 6-axis gyro system, maintaining the critical mechanical geometry required for stable flight.

Compatibility

For the VolantexRC Spitfire 500mm Brushless 4CH Warbird only.
Full model page (specs & photos):

https://www.kidstoylover.com/products/volantexrc-spitfire-500mm-brushless-4ch-warbird

What’s in the Box

• 1 x Spitfire 500mm Prop Saver Shaft Set

Install Tips

• Main Shaft Alignment: When sliding the shaft through the main frame bearings, ensure there is no vertical play; use shims if necessary to keep the drive gear perfectly meshed.

• Locking Bolt Security: Ensure the bolts passing through the main shaft holes are tightened securely and use a small amount of thread-locker to prevent them from vibrating loose.

• Bearing Inspection: Before installing the new shaft, inspect your main frame bearings for grit or damage; replacing worn bearings alongside the shaft will ensure maximum smoothness.

• Rotor Head Balance: After assembly, spin the rotor manually to check for any tracking issues; a straight main shaft is essential for the 4CH 6-axis gyro to stabilize correctly.

Support & Warranty

• 3-month warranty on manufacturing defects
• Ships worldwide

Other Spare Parts & Accessories

Find exact-fit props, wheels, landing gear, servos and more in the dedicated parts collection: VolantexRC Spitfire 500mm Spare Parts & Accessories.