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Pololu Universal Aluminum Mounting Hub for 5mm Shaft, #4-40 Holes (2-Pack)

These universal aluminum mounting hubs allow you to mount custom wheels and mechanisms to 5 mm diameter motor shafts. Read more...

  • Description

These universal aluminum mounting hubs allow you to mount custom wheels and mechanisms to 5 mm diameter motor shafts.

The set includes two hubs, two #4-40 set screws for securing the hubs to motor shafts, and one 0.05″ Allen wrench for use with the set screws. Each hub has four threaded mounting holes for #4-40 screws (not included).

These universal mounting hubs are designed to work with most 5 mm diameter shafts, including round shafts and “D” shafts. Each of the two included hubs has four mounting holes for #4-40 screws (not included), letting you mount custom wheels or mechanisms to your motors. The two included #4-40 hex set screws (one for each hub) allow secure coupling of shaft to hub, and a 0.05″ hex wrench (often the smallest size in SAE Allen wrench sets) is included for use with the set screws.

Dimensions

  • Size: 19 mm diameter × 5 mm thick
  • Weight: 3.2 g1
  • Shaft diameter: 5 mm
  • Mounting hole size: #4-40

1For a single hub only (without set screw).