Hirobo HI2525011 5mm Ball Connector Set for RC Helicopters, 10 pcs  [HI2525011]

5mm Ball Linkage — RC Helicopter Spares

This is an RC-scale ball connector sold as a set of 10 pcs, intended for general helicopter maintenance and linkage spares. The component functions as a small ball joint in control linkages where a 5mm ball seating is required.

Installation notes: fit the ball into the appropriate ball cup or rod end designed for a 5mm ball, secure threaded connections to the linkrod using the recommended thread engagement, and verify free play once installed. Use standard RC-safe threadlockers when working with metal-to-metal threads on rotating assemblies.

Tuning and service role: these ball connectors serve as replaceable pivot points between a servo output arm and swashplate or control horn, helping to maintain consistent travel and minimise slop in pitch and cyclic adjustments. Inspect for wear and replace if the ball shows visible deformation or excessive movement.