Hirobo HI0412270 Bearing Mount for Sceadu EX/SDEX 13x19  [HI0412270]

Replacement bearing holder for Sceadu EX and SDEX

This component is a purpose-made replacement part for the Sceadu EX and SDEX helicopter units stated in the title. It secures 13x19 ball bearings in drivetrain or rotor-support positions where accurate seating and axial alignment prevent excessive runout and vibration.

Fitting instructions: ensure the bearing outer race is flush with the seating face, check axial play prior to final tightening, and re-evaluate alignment after the initial flight. The holder fixes bearing location rather than altering preload, so final adjustments come from bearing selection and any shimming around the assembly.

Service recommendations: inspect for firm mounting and any wear at bearing contact points, keep bearings lubricated, and make sure retaining hardware remains secure. Re-check alignment during setup and after flight tests to maintain smooth rotor operation and reliable tail control.