Hirobo HI2521082 5 x 6.5 x 14 Collar — Helicopter Parts Retention Component  [HI2521082]

Collar component overview

This is the Hirobo HI2521082 collar described as "COLLAR 5 X 6.5 X 14" in Hirobo's parts listings. It serves as an RC-scale locating and retention collar for rotating shafts and internal linkages; the stamped "5 x 6.5 x 14" marking is the reference for fitment checks.

The collar's role is to act as a spacer and retention device, keeping bearings, gears, or other parts held in axial position while the model operates. Correct fitment requires matching the marked dimensions to the shaft or bore on your Hirobo helicopter or compatible general parts assemblies. Installation generally needs basic hand tools and access to the shaft; consult the model assembly notes for torque and orientation where necessary.

For setup and maintenance, use this collar to adjust component endplay or to replace worn spacers during servicing. As a generic collar within Hirobo's parts structure, confirm the dimension set before purchasing to ensure it fits your rotorhead or gearbox layout.