These Pololu universal aluminium mounting hubs allow you to mount custom wheels and mechanisms to3mmdiameter motor shafts
The set includes two hubs, two #2-56 set screws for securing the hubs to motor shafts, and one0.05″ Allen wrenchfor use with the set screws. Each hub has four threaded mounting holes for #4-40screws(not included).
Each of the two included hubs has four mounting holes for #2-56screws(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 a0.05″ hex wrench(often the smallest size in SAE Allen wrench sets) is included for use with the set screws.
These hubs will work with any mini/15.5D mm metal gearmotor ormicro metal gearmotor, and they also work with 60mm, 70mm, 80mm, and 90mmPololu wheels(excluding theMulti-Hub versions; see the individual wheel pages for compatibility details).
Specifications
Size: 17.5 mm diameter × 5 mm thick
Weight: 2.8g*
Shaft diameter: 3 mm
Mounting hole size: #2-56**
*For a single hub only (without set screw) **The set screw size is #4-40
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