Collar for Helicopter General Parts — Hirobo HI2521082 5 x 6.5 x 14  [HI2521082]

Retention collar description

This is the Hirobo HI2521082 collar identified as "COLLAR 5 X 6.5 X 14" in Hirobo spare parts. It is intended as an RC accessory to position and retain components on rotating shafts and internal linkages; use the "5 x 6.5 x 14" label to confirm compatibility.

The collar acts as a basic spacer and retention device to keep bearings, gears, or related parts in place during use. Fitment depends on matching the part's marked dimensions to the shaft or bore on your Hirobo helicopter or compatible general parts assemblies. Typical installation calls for access to the shaft area and simple hand tools; follow the model's assembly guidance for torque and orientation details where required.

For servicing and setup, the collar is useful when replacing worn spacers or fine-tuning component endplay. Because it is listed as a generic collar within Hirobo's parts catalogue, double-check the dimension set before ordering to ensure it integrates with your rotorhead or gearbox items.