Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Shaft radius

  1. Sep 25, 2007 #1
    Pls help me calculate the shaft radius of a coupling system thats goin to rotate an prespex cylindrical at 100 rpm by a motor.......... the dia of cylinder is 6 in and its width is 1 in. the material to be rotated is 10 gm s of sand........ bulk density if the sand is 3000 kg per m^3.......
  2. jcsd
  3. Sep 25, 2007 #2


    User Avatar
    Staff Emeritus
    Science Advisor

    Is this a homework problem? Is seems somewhat ill defined, particularly with respect to constraints, e.g. power, stress, materials, . . . .

    What is the orientation of the cylinder - horizontal or vertical? That will make difference regarding the distribution of the sand. Is the sand to be tumbled, as in a tumbler/blender.

    For starters calculate the volume of the cylinder and the volume of sand.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook