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

Compact ball-seat for linkages

This Hirobo HI2525003 D5mm ball stay H=5 serves as a small but critical seating component for helicopter link assemblies. It provides a consistent pivot point where ball links locate, preserving alignment in tight control systems and miniature assemblies. Check the D5mm diameter and H=5 height against your service part to ensure correct fitment.

Fitting is typically simple: verify the seat diameter, place the ball sit so load is centered, and confirm there is no unwanted lateral movement. As this is a direct replacement item, do not assume cross-model fit without confirming the bore and clearance.

Durability and upkeep: monitor the seating face for scoring or deformation. Replacing aged stays can prevent creeping slop and maintain repeatable control behavior during routine setup and flights.