Sceadu EX/SDEX 13x19 Bearing Holder HI0412270 by Hirobo  [HI0412270]

Hirobo HI0412270 bearing holder overview

This replacement bearing holder is made specifically for the Sceadu EX and SDEX helicopter assemblies named in the product title. It secures 13x19 ball bearings in drivetrain and rotor support positions where accurate seating and axial alignment reduce vibration and eliminate excess play.

Installation notes: seat the bearing so the race is flush with the holder's seating face, confirm axial clearance before final torque, and recheck alignment after the first run. The holder locks bearing location but does not change bearing preload, so final tuning is achieved through bearing selection and surrounding shims rather than by the holder itself.

Maintenance and inspection: ensure the holder is tightly mounted and free of wear that could permit movement, keep bearings properly lubricated, and verify retaining hardware remains secure. Small adjustments in seating can affect rotor smoothness and tail response, so re-verify alignment during setup and after test flights.