Re: (ET) motor bearings and brushes

["RJ Kanary" <rjkanary nauticom net>]

The large mower motors use the same bearings as the traction motors.Since
they are standard bearings, they are also available at most large auto 
parts
stores.


RJ Kanary
Member TRNi  Since 1998
ASE® Certified Master Auto Technician

rjkanary nauticom net

----- Original Message -----
From: "Steven Naugler" <snaugler earthlink net>
To: <elec-trak cosmos phy tufts edu>
Sent: Sunday, February 17, 2002 5:41 PM
Subject: Re: (ET) motor bearings and brushes


> To SteveS and others,
>
> MOTOR BEARINGS:
>
> The large frame traction motors use a 6203 bearing on the small end and a
> 6205 on the large end.
>
> The small diameter mower deck motors use a 6201 on the small end and a
6204
> on the large end.  The large diameter mower deck motors may use different
> sizes.
>
> SteveS, your Hoover bearing labeled 201 is a 6201, and the Hoover bearing
> labeled 99204 is a 6204.  Hoover no longer makes bearings, and the Hoover
> bearings are old enough that they don't use the curent industry standard
for
> labeling bearings.
>
> All of the GE tractor motors use metric bearings that are standard the
world
> over.  All manufacturers use this bearing nomenclature.  If you aren't
sure
> of a size measure the IO, OD, and width in millimeters.  Then you can get
a
> bearing size from a chart.  Your bearing part number would be in the form
of
> 62xx-xxx.  For us GE folks use 62xx-2RS.
>
> To get  two seals add -2RS to the bearing number.  For example, you'd 
> want
> to order 6201-2RS.  -1RS means one seal and one side open.  -2s means two
> metal shields.  -1S means one metal shield.  Shields don't hold in the
> grease as well as seals.
>
> So, SteveS, you need for three deck motors three 6201-2RS, three 
> 6204-2RS.
> For your traction motor, assuming a large frame tractor with a shunt 
> wound
> motor you'd need one 6203-2RS and one 6205-2RS.
>
> You should be able to get these from any bearing supply house, Grainger,
or
> even some good hardware stores.  Brand is not that important, but most
> commonly found around here are SKF, Fafnir, and NSK.  Do not hesitate to
use
> old bearings in dusty boxes so long as the wrapper is intact and the
bearing
> is dry.
>
> MOTOR BRUSHES:
>
> The GE motor brushes are best ordered from Bill Gunn.  They are
proprietary,
> and even if you could find brushes that fit, they may be the wrong
> composition.  Your motors have lasted this long, probably with the
original
> brushes and little to no commutator wear, why risk an incorrect part
unless
> you cannot get them from Bill Gunn.
>
> Hope this all helps.
>
> Steve Naugler
> snaugler earthlink net
>
> ----- Original Message -----
> From: "SteveS" <ssawtelle fcc net>
> To: <elec-trak cosmos phy tufts edu>
> Sent: Sunday, February 17, 2002 3:10 PM
> Subject: (ET) motor bearings and brushes
>
>
> > I  know this has come up before, but I swear that I searched the
archives
> > and could not find the answer! Also I promise to post the answer to the
> > files section where it will be easy for the next person to find.
> >
> > I need the part numbers for the mower and traction motor bearings (and
> > possibly brushes). Actually I have the bearings out of my small 
> > diameter
> > mower motor and have the Hoover numbers (201 top, 99204 bottom), but I
> can't
> > find an online distributer for themn or a cross-reference. Also I've
seen
> > reference to using better sealed bearings by other companies and I 
> > think
> > that would be a worthwhile upgrade..
> >
> > I tried to call Bill Gunn, but he's out for a couple weeks.
> >
> > I also would rather not take the traction motor apart yet to get the
> > bearings for that, as it might take a while to get bearings and I'm
having
> > to much fun driving around looking for things to push with the blade.
> >
> > So can anyone help? Also if you know of an online distributer that 
> > would
> > help too. I'm equa-long-distance from all the bearing supplies in our
> area;
> > Leesburg's only industry is antiques (not antique tractors!)
> >
> > TIA,
> >
> > Steve Sawtelle
> > Leesburg, VA
> > E12S
> >
> >
>
>
>