HIROBO HI2526002 M3 Stopper 3 x 7 x 5 for RC Helicopter Parts  [HI2526002]

M3 Stopper Overview

This M3 stopper is a compact RC component used to limit axial travel and provide repeatable positioning on assemblies that rely on M3 threaded shafts. It is suitable for model helicopter linkages and other small-scale RC applications where a low-profile mechanical stop is needed without modifying primary parts.

Compatibility: the stopper mates with components that accept standard M3 threads or shafts. Verify thread engagement and seating clearance on your linkage, rotor hub, or bracket before fitting to ensure correct alignment and movement range.

Installation and tuning role: screw the stopper onto the M3 shaft until it reaches the desired stop location, then check free play and contact points during slow trial rotations or servo throws. Make fine adjustments to set end-play limits for swashplates, linkages, or rotor components. Inspect periodically to detect loosening or wear that could affect trim or control response.

Maintenance notes: keep threads free from grit and debris, confirm the stop does not bind moving parts, and replace it if deformation or wear appears after repeated use.