5 x 7 x 2 Axial Shaft Collar for Scale Models - Hirobo HI2521137  [HI2521137]

5 x 7 x 2 axial clamp for scale models

The Hirobo HI2521137 collar is specified at 5 x 7 x 2 and suits model helicopters and similar scale assemblies where a small axial clamp is needed. It provides a straightforward method to retain shafts, spacers, or bearings inside confined mechanical stacks.

To install, position the collar where axial retention is required, confirm alignment with the mating components, and secure it following your model's fastening approach. This part is intended for positioning and micro-adjustment of axial clearance rather than for taking heavy torque loads, so validate fit and free rotation before completing the build.

Use the collar when tuning axial endplay or when locking parts after shim adjustments during maintenance. Because it is an accessory for model-scale systems, verify shaft diameter match and surrounding clearance to prevent contact with rotating elements or bearings.