Quote:
Originally Posted by Mark Sheridan
Just to be clear how loose our rollers are on our 2012 robot, the rollers will spin a couple time after flicking them.
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Problem is, the rollers can appear to be free-spinning when not under load, and then bind up when they are loaded.
There is a lot of axial force on the roller under real-world operating conditions. It is prohibitively expensive to put high-quality thrust ball bearings on FRC mecanum wheel rollers. I've never seen the VEX mecanum wheels. What provision is in the design to react the high axial forces without creating excessive friction? IOW, what two materials are scrubbing against each other when the roller is axially loaded?