SDX FZ-V Compatible Blade Spacer - HI0412294 for Rotor Stack by Hirobo  [HI0412294]

Spacer Details for SDX FZ-V Rotors

The Hirobo HI0412294 blade spacer is made to control the axial spacing between rotor blades on SDX FZ-V designated rotor heads. It functions as an intermediate shim that helps maintain consistent spacing and repeatable alignment when fitting or servicing blades.

Use the spacer where the stock blade stack or hub requires correction to pitch stack height or to remove lateral play. As a passive part its main contribution is predictable blade geometry, which can improve trim stability and rotor balance in electric or nitro RC helicopters.

Installation normally involves removing the blade hub to access the stack, placing the spacer in the chosen location, and reassembling. After fitting, check blade track, pitch symmetry, and clearance with the rotor stationary and at low speed to ensure correct seating and no interference.