The Pololu universal aluminium mounting hub allows you to mount custom wheels and mechanisms to 4 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 threaded holes for M3 screws (not included).
Our Code: MEC-30180
Supplier Link: [Pololu MPN:1997]
These universal mounting hubs are designed to work with most 4 mm shafts, including round shafts, and “D” shafts. 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 includs set screws and a matching 1.5mm Hex Wrench (Allen Key) .