Hirobo HI2500113 PHS 3EC Rod End for Helicopter Linkages  [HI2500113]

Precision rod end for RC helicopter linkages

This Hirobo HI2500113 rod end is an RC-scale linkage component intended for helicopter control systems. It is supplied as a single rod end designed to connect control rods to swashplate arms, servos, or tail assemblies where a compact pivoting joint is required. The PHS 3EC designation is shown in the part name and used to identify this specific rod end variant.

Installation typically requires matching the rod end's internal thread to the control rod or threaded ball stud you already use. When fitting, confirm thread engagement and endplay, use the correct threadlocker grade if the application calls for it, and avoid overtightening to preserve free pivot movement. Regular inspection for wear or play helps maintain predictable control response during tuning.

For tuning and setup, this rod end functions as a small pivot element that influences linkage geometry and play. Replacing worn rod ends can reduce slop in control linkages and contribute to crisper servo-to-surface response, but final control feel depends on the full linkage chain including clevises, balls, and servo output arms.