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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:
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.
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.