This component is the Hirobo HI0414179 universal shaft, supplied in two nominal lengths (34mm and 38.5mm) for RC-scale helicopter maintenance and repair. It is intended where a short drive or linkage shaft is required to match tight clearances and compact geometry.
As a straightforward mechanical link, the shaft transfers rotational or oscillating motion between hubs or linkages while allowing simple fitment in confined layouts. When swapping shafts, verify overall length, spline engagement if present, and axial play to ensure alignment with adjacent gears and bearings.
Installation notes: use the original retaining hardware or equivalent secure fasteners, check that the shaft does not rub on frames or bearings, and confirm smooth rotation throughout the travel. Pay particular attention to end-play and any introduced vibration, since small length changes can affect tail or rotor tracking and should be corrected by small linkage adjustments.
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