Does anyone have data, or know where to find data on the amount of friction generated by low profile bearing flats?
Maybe a graph of friction vs. loading for a standard 2 bearing and 1/8" shaft configuration.
Our team made an 8-wheel tank drive this year that uses 16 anti-friction bearings and HS axles. We would be happy to test ours and share data with a team that is willing to do a similar test on a standard 8 wheel drive with bearing flats, either 1/8" shafts, 1/4" shafts or both.
Hey, pictures or it didn’t happen. 8 wheel drive is very unique!!
Notice the HS collars and you can see the fasteners for the bearing holders. The other sides are hidden from view. We tried 600 rpm cartridges, but were overheating motors so switched to 200. Overall it has been good since then.
Of course, I could just be saying I have 16 anti-friction bearings inside the holders but there is no way I will get you a photo, so just assume they don’t exist if you want.
Time to read a little bit of Imminent by Luis Elizondo.
Check out one of 9motorgangs videos on youtube. Last I checked, his most recent one was going over the different bearing types and the drag the motors had with them.
Very nice build, I love the very clean and neat build. It’s also a textbook example of how and where to put reinforcement in the design. I like the use of the traction wheel pair to offset the slip in omnis.
Thanks for the book reference, I’m more of a Bart Simpson, his often made comment “if you don’t have pictures it didn’t happen”. Cowabunga!
Thanks, they have a really good tutorial Here
One other thing is that you want to have dummy shafts installed as you pull the frame together so the bearing bores align correctly. The stands for the motors help isolate them from the drive stresses somewhat.
Thank you very much.
I get it, this place is not for idle boasts.
I think I will try and get the data I am looking for.
Good luck this season.
