Description: The universal aluminum mounting hub allows you to mount custom wheels and mechanisms to 5 mm motor shafts. The hubs are sold in pairs. The set includes one Allen wrench and two 4-40 set screws for securing the hubs to motor shafts.
Based on 3 ratings:
Everything came just fine in the package, and the included hex key for the grub screws was very well made. The hubs sit very tightly on D- or round shafts and seem to be quite sturdy. I wouldn’t hesitate to buy more if I needed them in the future.
I hope they come up with some larger 5mm ones for bigger projects. They are VERY tough to find.
I’m using this on a Halloween prop that doesn’t require a lot of torque, and it’s working perfectly. :-)
Oh yeah, I wasn’t sure what length screws I needed until I assembled everything, so I bought the screws from the local hardware store as the screws are a common size.