Eagle/Freya/EX/SX Replacement Drive Gear Shaft - Hirobo HI0404314  [HI0404314]

Gear and shaft spare for Hirobo helicopter drivetrain

The Hirobo HI0404314 gear with shaft is supplied as a precision replacement intended for common helicopter upkeep and crash repair. It installs into the transmission to resume correct torque transfer between gear stages and to remedy mesh or alignment issues.

This part lists compatibility with Eagle, Freya, EX and SX model series under Hirobo parts; confirm your exact model before fitting. It functions as a drivetrain mechanical link and should not be confused with bearings or motor components.

Installation guidance: inspect the mating gear teeth and shaft bores for wear, clean contact points, and check for correct mesh and axial play before securing. Minor axial adjustments and thin shims typically tame noise and improve efficiency; do not force the shaft into position.

Packaging usually contains one gear assembly ready for fitment; verify that you have 1 pcs and that the orientation matches the original during installation.