Question on Bearing change out

[Wayne Galligan]

John,

I can not see any difference on power out put.   We have sealed bearings in
just about everything we use.   Wheel bearings and alternators for example.
They have to run under extreme conditions in heat, load and moisture.   I
know.... a different situation but not so far out there.

Try it with the seal in.  I bet you wont be taking the seals out.

Wayne G.
----- Original Message ----- 
From: "John Pavlick" <jpavlick at idseng.com>
To: <discussion at nsrca.org>
Sent: Monday, February 21, 2005 6:37 PM
Subject: RE: Question on Bearing change out


> Wayne,
>  I'm trying the same thing with some Boca bearings this season in an OS
160.
> I bought S.S. front and rear bearings with seals (both sides). I left the
> seals on thinking that the bearings will just run in the "lifetime
> lubricant" (grease) that the bearings have from the factory. I'm hoping
that
> keeping the fuel out of the bearings might be a good thing. The only thing
> I'm concerned about is the amount of drag from the grease. Fuel / oil is
> much thinner so it offers less resistance at high RPM. If the motor
doesn't
> rev up as expected I'll just pull the seals off of the rear bearing, I
> guess.
>
> John Pavlick
> http://www.idseng.com
>
>
> > -----Original Message-----
> > From: discussion-request at nsrca.org
> > [mailto:discussion-request at nsrca.org]On Behalf Of Wayne Galligan
> > Sent: Monday, February 21, 2005 2:37 PM
> > To: discussion at nsrca.org
> > Subject: Re: Question on Bearing change out
> >
> >
> > I use the Purvis bearings and leave the rubber seals in them and have
had
> > good service with that setup.  OS 1.40  has over 130 flights and still
> > running strong.
> >
> > Wayne G.
>
>
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