RC Helicopter Ball Stay D5mm H=5 - Hirobo HI2525003  [HI2525003]

Precision ball stay for controls

This Hirobo HI2525003 D5mm ball stay H=5 is intended as a precise seating element for small control link assemblies on helicopters. It establishes the pivot point for ball links, allowing repeatable positioning in compact mechanical stacks. Verify the D5mm seat and H=5 height to confirm correct interchangeability with your existing part.

Installation notes: align the stay so the ball is centered in the seat, secure any retaining hardware, and sweep the control surfaces to check for binding. Because clearances are tight in miniature linkages, take measurements rather than relying on model lists.

Tuning impact: fitting a clean, unworn stay reduces slop at the joint and can sharpen perceived servo action without changing radio or servo settings. Replace as part of routine maintenance when precision is required.