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 4 ratings:
I hope they come up with some larger 5mm ones for bigger projects. They are VERY tough to find.
Solid product. Well-made and light, but I won’t have the chance to try them in my project.
I purchased these under the mistaken impression that they would work with the Actobotics sprockets I bought to mount to them. Alas, they do not. Reading the comments, it seems I’m not alone in this discovery. I don’t fault the manufacturer or Sparkfun at all; I blame myself for getting lazy and making assumptions.
Sorry to hear they won’t work for your application. If you contact our tech support team, they’ll be able to arrange a refund for you if you’d like.
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’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.