5mm Pololu universal aluminum mounting hub on a stepper motor with a 5mm-diameter output shaft.

These universal mounting hubs are designed to work with most 5 mm diameter shafts, including round shafts and “D” shafts, such as those on our stepper motors. 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. A dimension diagram of the hub is available under the resources tab.

These hubs will work with most of our stepper motors (the ones with 5 mm shafts), and they also work with 60 mm, 70 mm, 80 mm, and 90 mm Pololu wheels.

Pololu wheels with 90, 80, 70, and 60mm diameters in three colors: blue, red, and yellow.


Specifications

Dimensions

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

Notes:

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

Resources

File downloads

Pololu universal aluminum mounting hub for 5mm shaft, #4-40 holes mechanical drawing (33k pdf)
Printable mechanical drawing for the Pololu universal aluminum mounting hub for 5mm shaft, #4-40 holes.
3D model of Pololu Universal Aluminum Mounting Hub for 5mm Shaft, #4-40 Holes (1MB step)

(PL-1203)

SKU PL-1203
Brand Pololu

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