Wheels, shaft, bearings, and bracket

Hi,

I'm new to this. I'm coaching teams making vehicles. They need to have wheels attached to axles going through bearings and having the bearings attach to the vehicle. I'd prefer to have the bearing have ball bearings.  Regarding attaching the bearings to the vehicle, I'd prefer to have a flat surface parallel to the axle with bolt holes as opposed to having two concentric circles, one inner and one outer. That flat surface could be achieved by a bracket. 

BTW, the axles will have to be threaded rod although the students might be able to put the threaded rod inside a tube so that there is a smooth surface to go into the bearings.

thanks
Rob

Hi Rob,

It’s hard to suggest anything at this point.
Most robot vehicle (rover) will rely on the motor output shaft directly connected to the wheel. This eliminate the need for “bearing” support.

A simple 90deg bracket will get your motor mounted.

Let us know if that make sense for your needs

:slight_smile:

Hi Rob,

Yeah, it’ll be very much dependent on how you intend to deliver power to the wheels from whatever motor you’re using. Do you have a photo or specs?

Cheers,

Nick.

Ahh. For clarification, it’s a glider. It’ll receive a boost at the beginning (from a falling weight pulling on a string) and then it’s on its own and slowing down due to friction, hence the need for bearings. To complete the design challenge, one of the axles will be a threaded rod ( e.g. 1/4-20, but we can select the size as needed). It might be possible to put a tube over the ends to go through the bearings and /or into the wheel. Or use a shaft adapter or perhaps just wrap the threaded rod with tape. So we need the bearings and wheels. Well then want plates or channels from which to build the vehicle and attach the bearings, and hence axles and wheels.
Many thanks in advance.

Note, the threaded rod is rotating.

Wheels can be any size, but 2"~4", 50mm~ 100mm seems reasonable.