Hirobo HI0412270 Precision Bearing Holder for Sceadu EX SDEX (13x19)  [HI0412270]

Product summary for HI0412270

This dedicated replacement part fits the Sceadu EX and SDEX helicopter assemblies listed in the product title. Its purpose is to clamp 13x19 ball bearings in critical drivetrain and rotor-support positions where accurate seating minimizes runout and unwanted vibration.

Installation guidance: align the bearing so the outer race sits flush with the seating surface, verify axial clearance before final torqueing, and inspect again after the first flight session. The component secures bearing location rather than changing preload; final rotor balance and play adjustments come from bearing choice and any spacing shims used.

Upkeep advice: routinely check that mounting hardware is tight and the holder surface shows no wear that could permit bearing movement, keep bearings lubricated, and verify that alignment remains consistent during setup and after testing flights.