Re: Machining SRSG disk ?

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <FutureT-at-aol-dot-com>

In a message dated 7/24/02 10:17:52 AM Eastern Daylight Time, tesla-at-pupman-dot-com
writes:

For an 1800 rpm motor, and a 1/4" or 3/8" phenolic 6" or 7" rotor,
such forces are not a problem.  I never heard of a liner gap.

John


>
> The biggest consideration when building a rotating gap is rotational speed. 
> You need to calculate the forces that are trying to pull this disk apart. 
> The electrodes are located on the Circumference of the disk. This creates a 
> tremendous moment / force (Centerfugal force) which tries to pull the disk 
> apart. Since most disk have an insulator at the center (Low strength) it is 
> important to know what theses forces are so you do not over stress the disk. 
> In addition to this a liner gap is much easier to construct and it will work 
> fine at low power.
>