Pololu Universal Aluminum Mounting Hub for 3mm Shaft M3 Holes (2 Pack)

The Pololu universal aluminum mounting hub allows you to mount custom wheels and mechanisms to 3 mm motor shafts. The hubs are sold in pairs, and each hub includes one M3 set screw for securing a motor shaft to the hub. Each hub has four mounting holes for M3 screws (not included)

AUD$ 11.95

In stock in Australia  

Shipping from $2.90

+763 more from our supplier in 7-10 days

Our Code: MEC-30179

Supplier Link: [Pololu MPN:1996]


These universal mounting hubs are designed to work with most 3mm shafts, including round shafts, “D” shafts, and Tamiya’s 3mm hexagonal shafts found on the Tamiya 70097 Twin Motor Gearbox Kit and Tamiya 70168 Double Gearbox Kit. Each hub has four mounting holes for M3 screws, letting you mount custom wheels or mechanisms to your motors. M3 hex set screws (one included for each hub) allow secure coupling of shaft to hub. The kit includes set screws and a 1.5mm Hex Wrench (Allen Key)

Kit Includes:

  • Two hubs
  • M3 Set screws for fixing the hub to a shaft
  • 1.5mm Hex wrench to fit the set screws
We also stock M3 machine screws of various lengths that can be used to fit wheels to these hubs.


File downloads

Pololu universal aluminum mounting hub for 3mm shaft, M3 holes mechanical drawing (33k pdf)

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