These universal mounting hubs are designed to work with most 3mm shafts, including round shafts, “D” shafts, and Tamiya’s 3 mm hexagonal shafts. Each of the two included hubs has four mounting holes for M3 screws (not included), letting you mount custom wheels or mechanisms to your motors. The two included M3 hex set screws (one for each hub) allow secure coupling of shaft to hub, and a 1.5 mm hex wrench is included for use with the set screws.
This hub will work with any Pololu mini/15.5D mm metal gearmotor or micro metal gearmotor, and it also works with 60 mm, 70 mm, 80 mm, and 90 mm Pololu wheels.
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