Hirobo HI2525012 D5mm Ball (H=9.5) 10pc Replacement Set  [HI2525012]

D5mm Linkage Balls (H=9.5)

This Hirobo D5mm ball set (HI2525012) is a compact replacement intended for RC helicopter linkage assemblies that require a D5mm ball with a 9.5mm height. The pack includes 10pcs suitable for regular maintenance and part swaps on general helicopter linkages.

Fit these balls where a small ball joint is needed in control linkages or rotating connections. Before installing, confirm the mating rod diameter, socket fit and the retention method used on your model to ensure a secure engagement and minimal play.

When servicing linkage systems, examine each ball for deformation or wear and replace matching joints together when multiple items show looseness; keeping geometry uniform helps retain predictable control feel and simplifies tuning.