Hirobo HI2511013 Cross Member M2 x 20 with 5mm Ball Joint for RC Helicopter Linkages  [HI2511013]

Cross member for RC helicopter linkages

This HIROBO cross member is an RC-scale accessory intended to secure link connections where a 5mm ball interface is required and an M2 x 20 fastener is used. It serves as a small structural link between control rods and ball studs on helicopter subassemblies, helping to maintain alignment in collective and tail linkage systems.

Installation typically involves aligning the ball joint with the mating linkage, inserting the M2 x 20 fastener through the mount, and locking the assembly into the existing threaded mounting point. Verify ball seating and free movement before finalizing the fit to avoid binding of the linkage during rotor motion.

In tuning and setup, this cross member affects control geometry and play at the ball joint, so confirm travel ranges with the servo at neutral to maintain predictable control response. As an RC-scale part, it is intended for model helicopters and related small rotorcraft hardware rather than any full-size application.