Hirobo HI0404510 SX Bevel Gear Holder  [HI0404510]

SX bevel gear holder overview

This is an RC-scale bevel gear holder designed as a common spare for models listed under Eagle, Freya, EX and SX categories. It serves as the mounting support that keeps bevel gears aligned within the transmission stack, intended for routine maintenance and light tuning of helicopter drivetrain geometry.

The component’s role is purely structural: it locates the bevel gear relative to the gearbox and main/tail drive components, helps limit axial and radial play, and provides a repeatable mounting reference when replacing or inspecting gears. It is supplied as a single replacement part to be fitted in the existing helicopter assembly without modification of other drivetrain parts.

Installation notes: check gear mesh and runout after fitting, secure any associated screws to their original torque settings, and verify gear engagement under slow manual rotation before applying power. During setup, small axial shims or commonly available shimming methods can be used to fine-tune backlash and ensure smooth gear interaction.