5 x 7 x 11 Hirobo HI2521088 Collar Compatible with RC Helicopter Shafts  [HI2521088]

Low-profile collar for rotor shafts

The Hirobo HI2521088 collar is supplied as a 5 x 7 x 11 replacement item for general helicopter assemblies. It is intended to keep axial positioning on rotating shafts and to provide a simple retention solution where space is constrained.

To install, slide the collar onto the shaft to the desired position and secure following the existing fastening method on the component. Take care not to overtighten the clamp so as to avoid shaft distortion and verify axial movement after fitting. The collar is handy for scheduled maintenance and small adjustments on RC helicopters.