Hirobo HI0414179 Universal Shaft L=34,38.5  [HI0414179]

Universal shaft for RC helicopters

This is a Hirobo-branded universal shaft supplied under model HI0414179, offered in two nominal lengths (34mm and 38.5mm) for RC-scale helicopter maintenance and repair. The component serves as a short drive or linkage shaft where compact length options are needed to match clearance and geometry in small assemblies.

Designed as a direct mechanical link, the shaft's role is to transfer rotational or oscillating motion between hubs or linkages while allowing simple fitment in tight layouts. When replacing an existing shaft, check overall length, spline fit (if applicable), and axial play to ensure correct alignment with adjacent gears and bearings.

Installation notes: fit the shaft using the original retaining hardware or equivalent secure fasteners, verify there is no rubbing against frames or bearings, and confirm smooth rotation through the intended travel. During setup, pay attention to end-play and any induced vibration; small differences in effective length can affect tail or rotor tracking and should be corrected by minor adjustments to linkage positions.