Universal Aluminium Mounting Hub for 4mm Shaft, M3 Holes (2-pack)

Universal Aluminium Mounting Hub for 4mm Shaft, M3 Holes  – Pololu 1998

These universal mounting hubs are designed to allow custom wheels and mechanisms to be coupled with 4mm diameter motor shafts. They will work with most motor shaft types including round and “D” type shafts such as those on our stepper motors. Each hub has 4 threaded mounting holes designed to be used with M3 screws. Screwing the included M3 set screws into the set screw holes allows the hub to be secured to a 4mm motor shaft.

Dimensions:

• Size: 19mm diameter x 5mm thick
• Weight: 3.2 g*
• Shaft Diameter: 3 mm
• Mounting Hole Size: M3

* This value is for a single mounting hub without set screws.

Included Items:

• Two mounting hubs
• Three M3 set screws (one for each hub and a spare)
• One 1.5 mm Allen wrench

Note: Screws for mounting wheel or mechanism to hub not included.

Documents:

• Pololu 1997 Mounting Hub Engineering Drawing
• Pololu 1997 Mounting Hub STEP File