Mounting mecanum wheels... please help?

[Governators3361]

Originally Posted by jimwick

We have used Toughbox mini's 12.75:1 with 8" wheels. That's what we plan to use this year. Seem to work OK.

Are the Toughboxes Minis the same gearboxes that came in the kit of parts? I've taken a look, and they look the same, but without being in the shop to really check I can't tell. If they are, do you think they would work the same with 6" wheels? Do you have a video of them working? I would be interested to see the functionality of the toughboxes with mecanum wheels.

[GeeTwo]

Originally Posted by Governators3361

Are the Toughboxes Minis the same gearboxes that came in the kit of parts? I've taken a look, and they look the same, but without being in the shop to really check I can't tell. If they are, do you think they would work the same with 6" wheels? Do you have a video of them working? I would be interested to see the functionality of the toughboxes with mecanum wheels.

The KOP gearbox is a TB Mini, but it's an 8.45:1, not 12.75. Using the 8.45 gear ratio with 6" wheels will be very similar to performance of a 12.75:1 with 8" wheels (about 11% faster).

[GeeTwo]

Originally Posted by Jon Stratis

We're avoiding cutting out any of the flanges on the frame, and instead are building a mount for the gearbox that will stand it off .625" (i think), which is the width of the flange. This also required turning custom axles, as the normal KoP output shaft isn't long enough once we move the gear boxes off the frame like that.

Another solution would be to provide cantilever support for the wheel by boring out the hole in the inner plate to 1-1/8" and using the KOP hex shaft bearing in that hole. You'd also need a hex shaft collar or two to keep things from walking.