Quote:
Originally Posted by helgy8
Our team is having problems figuring out what to use for bearings in our situation. We are trying to make an archimedies screw for holding the Orbit Balls with the motor driving it ontop, but we cant think of what to put on the bottom to hold it. It needs to have good hold because it needs to hold the pressure of the orbit balls being compressed by two inches on every side. please and thanx
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Couple of questions:
1> Is the shaft PVC or wood?
2> When running the Archemedies screw are you turning the 'screw' or the center shaft (used as a beater bar)?
3> How much flex will the outer surface of your Archemedies screw have?
4> What is the force required to push a ball, with that much compression, up the screw?
I have concerns that your compression is too much and will damage the balls as well as increase the load on the motor(s) of the Archemedies screw. You may want to look into having the screw shaft compress somewhat, rather than doing all the compression on the ball itself.
P.S. Welcome to Chief Delphi and
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