M3 Threaded Mechanical Stop 3 x 7 x 5 HIROBO HI2526002 for RC Models  [HI2526002]

Technical Summary: M3 Stopper

The M3 stopper is an accessory that limits axial motion and provides repeatable positioning for parts using M3 threaded shafts. It is intended for small-scale helicopter linkages and general RC model uses where a compact mechanical limit is preferable to changing primary parts.

Compatibility: designed to fit standard M3 threads or shafts. Confirm mating thread fit and seating clearance on your linkage, rotor hub, or mounting bracket before final installation to ensure proper travel and alignment.

Installation and tuning role: adjust the stopper along the shaft to establish the desired stopping point, then verify smooth operation with slow manual or powered checks. Make incremental changes to set end-play limits for swashplates, linkages, or rotor assemblies. Regular checks will help detect wear or loosening that can alter control characteristics.

Maintenance notes: keep threads clear of debris, ensure the stop does not impede moving parts, and replace if signs of wear or deformation appear after repeated service cycles.