Eagle/Freya/EX/SX Compatible SX Bearing Holder Set - Hirobo HI0404511  [HI0404511]

Key Facts for SX Holders

This replacement set contains SX-series bearing holders intended as common service parts for Hirobo Eagle, Freya, EX and SX model helicopters. It is provided as an accessory pack for RC-scale helicopter maintenance and repair rather than for full-size aircraft.

The holders secure ball bearings in the rotor and drive geometry so alignment is maintained during rebuilds and after disassembly. Fitting fresh holders can help sustain shaft concentricity and reduce play that impacts rotor tracking and the aircraft's handling response.

Fitment notes: check the SX designation and ensure the HI0404511 part number matches your model parts list before installation, confirm bearing sizes and shaft interfaces, and use the correct fasteners with suitable thread locking for model assemblies. Inspect clearances after fitting and perform a controlled ground spin at low throttle to verify smooth operation prior to flying.