Hirobo HI0412295 8mm Spherical Bush Ball for SDX FZ-V  [HI0412295]

Compact 8mm ball joint for SDX FZ-V linkages

This 8mm spherical bush ball, listed as Hirobo HI0412295, is designed for SDX FZ-V helicopter linkage systems that need a compact pivot. It creates a stable connection between control rods and horns to help maintain alignment and minimise slop in cyclic and tail linkages.

Installation is simple for those experienced with model helicopters: press the ball into its mating socket, ensure the linkage is free of twists and binding, then secure the retaining hardware. Confirm the linkage has full travel and check fastener security after an initial hover or test run.

When used as a tuning upgrade, this bush ball reduces lateral play at the joint to improve control feel; combine it with well-set pushrods and correctly trimmed servos or swash adjustments for best results. Keep an eye on the joint for wear and swap it out if play begins to appear.