Sunday, January 29, 2017

Re: [Electric Boats] Re: Decibels

 

A cover of some sort will quiet things a bit   After you put a little time in testing   Go for it.  Mine is very quiet

Sent from my iPhone

On Jan 29, 2017, at 5:41 PM, moriartybob@yahoo.com [electricboats] <electricboats@yahoogroups.com> wrote:

 

Thanks everyone for your replies and theories. Has anyone taken any measurements? My most recent subjective observations put my 3:1 planetary gear reduction unit (which includes the thrust bearing) as a substantial noise source. It's hard to objectively pinpoint the noisiest culprit - be it the motor, the 3:1 reduction unit, or the stuffing box. Just looking for some data.  :-)
Maybe I should look at some sort of lead collar around the 3:1 unit.
--Bob M

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