Hirobo HI0402503 Shuttle ZX Bearing Collar 9 x 13 x 6  [HI0402503]

Bearing Collar for Shuttle ZX

This bearing collar is specified for use with Shuttle ZX assemblies where a 9 x 13 x 6 mm collar is required to locate and retain a ball bearing. The part serves as a compact retention sleeve that helps maintain radial position of the bearing inside the hub or gearbox housing on RC helicopter components.

Installation is typically performed by seating the collar into its bore until fully flush with the mating surface and then installing the bearing against it to ensure correct axial and radial alignment. Avoid excessive impact when pressing the part into place and verify that the bearing spins freely after installation to confirm there is no binding.

In tuning and maintenance workflows this collar functions as a simple alignment aid: consistent collar seating reduces play at the bearing interface, which helps maintain smooth rotor movement and repeatable drivetrain behavior. Check collar and bearing interfaces during routine inspections and replace if any deformation or wear is observed.