pic: Swerve Render

[Bryce2471]

Originally Posted by asid61

Those Silverthin bearings are pricey (albeit highly convenient)! I know teams that used them way back in the past have gotten sponsored.

I was worried about this. I requested a quote from Silverthin but have not heard back yet. I know the equivalent bearing from VXB is $81.77!

Originally Posted by Cothron Theiss

Can you shed some light on the wheel itself? Also, any chance for the full CAD?

The wheel is to be made from ABS (either on a printer or lathe) and the tread is polyurethane tubing from sun-ray that would be pressed on and bonded with a silicone adhesive like shoe goo. The basic layout and shape of the wheel should be visible in the cross section view.
Here is a link to the CAD. If you need STEP files let me know, and I can put that up too.

Originally Posted by mman1506

Retention Compound (also made by Loctite) should work well. It can fill much larger gaps than threadlock.

I like this idea, but I'm not sure how removable it would be.

[asid61]

Is there a STEP format file in the folder? I can't seem to find one.

[Cothron Theiss]

Originally Posted by Bryce2471

The wheel is to be made from ABS (either on a printer or lathe) and the tread is polyurethane tubing from sun-ray that would be pressed on and bonded with a silicone adhesive like shoe goo.

Huh. That's interesting. So if/when the tread wears out, do you plan on just switching out the entire module or just the wheel?

[Bryce2471]

Originally Posted by asid61

Is there a STEP format file in the folder? I can't seem to find one.

There was not, but I just added one! Here is the link directly to the step file.

Originally Posted by Cothron Theiss

Huh. That's interesting. So if/when the tread wears out, do you plan on just switching out the entire module or just the wheel?

Yes. Or we could swap out the lower caster part, which ever is easiest. (I'm guessing just swapping out the wheel will be fastest because it only requires one bolt.) Then the old wheel can get new tread, so it can be used again later.

[Lil' Lavery]

Are you concerned about thrust loads generated from the bevel gears at all? I can't tell what bearings you're using on your drive shaft. Especially with the draft shaft being a nut/bolt combo, it seems like those thrust loads could slowly loosen the nut and creating play in the drive shaft.

[Bryce2471]

Originally Posted by Lil' Lavery

Are you concerned about thrust loads generated from the bevel gears at all? I can't tell what bearings you're using on your drive shaft. Especially with the draft shaft being a nut/bolt combo, it seems like those thrust loads could slowly loosen the nut and creating play in the drive shaft.

Do you mean the wheel shaft or the vertical shaft?

If you mean the vertical drive shaft, I am not worried about thrust loads because it is supported by 0.375" ID 0.875" OD flanged bearing, and I think it will be more than strong enough.

If you mean the wheel shaft, I am not worried about thrust loads from the bevel gears, because I am much more worried about the thrust loads from driving forces on the wheel.

Also none of the shafts are a nut/bolt combo. the vertical shaft is a solid aluminum live axle, the wheel shaft is a hollow steel dead axle with a bolt through the middle of it.

[mman1506]

Originally Posted by Bryce2471

I like this idea, but I'm not sure how removable it would be.

Heat and some force should get it off without too much issue. CIMs are relatively cheap and reliable anyway.