Alternator rebuild question...

[auditude at get.net]

gerard gerard at poboxes.com wrote:
>
> I asked this in the post about cleaning up the alternator internals, but
> I think some might have skipped it.

I saw some response to a post, suggesting that some of the
work wasn't necessary, and one person's experience was that
DIY repairs ended up failing.  But as for your question:

> The Haynes manual says I have to install the front bearing onto the
> rotor using a tube pressing on the outer race of the bearing. The slip
> ring end bearing is pushed on using a tube on the inner race of the
> bearing.
>
> Why the outer race for the front one? I thought bearings get damaged
> like that or does it not make a difference for single-row
> ball bearings?

I'm not familiar with the terms being used, such as rotor and
slip ring and such.  I believe the rotor might be the housing
itself or something, and the slip ring would be the spinning
thing inside.  I do remember the discussions about this
before, so I don't wanna use the wrong words!

Anyhow, I think that the important thing to do when pressing
in bearings, is that you always press on the race that is
touching the surface it is being pressed into.

If you are pressing a wheel bearing into a strut housing, for
example, it is getting installed inside the housing, so you
would push on the outside race.  The ball bearings and inside
race would just be "going along for the ride", and not
experience any stress.

Then, in the same wheel bearing example, you press the hub
into the center of the installed bearing, while pressing
against the inside race of the wheel bearing.  In this
example, the outer race, strut housing, and ball bearings are
just "going along for the ride", so to speak.  You would press
the hub on the one side, and the inner race on the other.  No
pressure on the outer race or strut housing, so no stress on
the bearings.

I think you probably intuitively know what it is you are
trying to do.  The rule for bearings applies to the single-row
bearings as well.

YMMV!

HTH,

Ken