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Capacitance calculus of a bearing

  1. Apr 9, 2007 #1
    I would like to calculate theoretically the capacitance of a bearing with metallic rings and ceramic spheres (see http://en.wikipedia.org/wiki/Rolling-element_bearing.

    The expression for a cylindrical capacitor is: (2*pi*eps0*l)/(lnb/a).

    However, when adding some spherical balls inside the cylinder, how should I proceed?

    Thank u,

    Last edited by a moderator: Apr 9, 2007
  2. jcsd
  3. Apr 9, 2007 #2


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    Staff: Mentor

    That's a tough one. It may take a numerical software package (like QuickField or ANSYS) to calculate that capacitance. Do you have any FEA/Electrical calculation software packages available?
  4. Apr 9, 2007 #3
    Unfortunately I haven´t... what a pity!
    Anyway thank u for telling me it is not that simple.
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