pic: Cooney 269's Worm Crab Gearbox Interior

[AdamHeard]

Originally Posted by Barry Bonzack

Wow, I'm also impressed with your lifting ramp. I understand the theory that the worm drive will keep your wheels from back driving. Is there a reason your team chose not use high traction wheels or chose not to put high traction material over the andymarks?

Common "High Traction" wheels in first are usually in the 1.2-1.3 coefficient of friction range. The AndyMarks are 1.0-1.1; So they are still pretty grippy.