Hirobo HI2529007 O-RING P-22 O-ring Pack for Helicopter Spare Parts  [HI2529007]

Small O-ring Pack for Helicopter Servicing

This Hirobo HI2529007 O-RING P-22 is supplied as a small rubber o-ring pack intended for general helicopter parts servicing. The set caters for replacement of hardened or worn seals in confined joints where a compact elastic seal is needed.

Typical workshop use includes sealing linkages, protecting minor rotor bearings from dust ingress, and restoring preload on softer joints. As a generic replacement item, confirm the o-ring fits the target assembly before completing the installation.

Installation notes

• Remove the existing o-ring and clean mating surfaces thoroughly to remove dirt and residual lubricant.
• Lightly lubricate the replacement o-ring with a suitable silicone grease to ease fitment and reduce pinching risk.
• Stretch and seat the o-ring over the shaft or into the groove, check for free movement of the linkage or bearing, and ensure there is no binding.

Tuning and maintenance role

O-rings are used to maintain seals and reduce play in small mechanical connections; fitting new rings can restore smoother movement and reduce contamination-related performance issues. Keep spare rings available for routine inspections and prompt on-site replacements.