This aftermarket pack supplies ten EX D5mm ball with stand units from Hirobo, aimed at servicing small RC helicopter linkages and restoring worn control connections. The items are offered as a service kit to refresh ball joints used in rotor and control link assemblies.
Design role: the D5mm ball with stand creates a low-profile joint where space is constrained; it serves as a replaceable bearing point between rods and control arms to lessen slop and recover precise input translation.
Installation advice: inspect the receiving sockets and linkage pins for wear before installation, swap in matched pairs where balance is important, and ensure the stand sits firmly in the arm or bracket. Standard RC hand tools suffice for fitting, and the ten-piece count covers multiple replacements or spare stock for outings.
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