The shaft hub are universal coupler made with aluminium. With them, you can place wheel on 3mm shaft or mount other items on a shaft.
Each couple does 4 holes with M3 thread.
- Size: 17.5mm
- Height: 5mm
- Weight: 2.8gr (each)
- Shaft diameter: 3mm
- Screw size: M3
- 2 x aluminium coupler (also named shaft hub)
- 2 x M3 screw
- 1 x 1.5mm (to fix the coupler on M3 shaft)
- 1 x 1.5mm Allen