5 x 7 x 18.3 Hirobo HI2521091 RC Helicopter Collar  [HI2521091]

HIROBO 2521-091 COLLAR 5 X 7 X 18.3 #2521091
Price:
NZD$9.54
Brand:
Hirobo
Model:
HI2521091
GTIN:
4512895127282
Condition:
Brand New
Write a review

Collar Component Overview

This collar is an RC-scale part referenced by Hirobo model HI2521091 and carries the dimensional marker 5 x 7 x 18.3 to indicate its shaft and axial spacing characteristics. Use that size to confirm fitment in compact rotorlinkage assemblies.

It functions as a spacer and locator inside rotor linkages or small transmission stacks, maintaining alignment between adjacent components and allowing for precise incremental axial positioning where required.

Installation advice remains general: verify the 5 x 7 x 18.3 measurement against the target shaft or bore on your model, slide the collar into the required position, and secure it with the model’s existing hardware. This description refers only to RC use.

What information does HI2521091 convey?

HI2521091 is the unique Hirobo part number for this collar; the accompanying 5 x 7 x 18.3 sizing detail is used to match the part to your model’s shaft dimensions.

How do I confirm compatibility?

Confirm compatibility by measuring your shaft or bore and comparing those figures to the collar’s 5 x 7 x 18.3 specification. If the dimensions match, the collar will fit the intended location.

Should I worry about orientation?

Orientation is typically straightforward: align the collar so it seats evenly on the shaft, then secure it. If your model uses set screws or retaining clips, follow the manufacturer guidance for final tightening.

Copyright © 2008-2026 rcjaz.co.nz All rights reserved