Re: [CAD_CAM_EDM_DRO] Re: Bearing Bore/Shaft Tolerances

If you decide to use Timken tapered roller bearings anywhere...be it for CNC or other wise...try to get ahold of their catalogs. They are extensive and there is a wealth of engineering info. in them...for both tapered roller bearing and lots of other bearing styles.

Smoke
-----Original Message-----
From: Hugh Currin <currinh@...>
To: CAD_CAM_EDM_DRO@egroups.com <CAD_CAM_EDM_DRO@egroups.com>
Date: Saturday, October 28, 2000 11:03 PM
Subject: [CAD_CAM_EDM_DRO] Re: Bearing Bore/Shaft Tolerances


et al:

Regarding bearing tolerances.

At 12:29 AM 10/29/00 +0000, you wrote:

>Machinery's Handbook (available, as they say in the biz'ness,
>everywhere)
>
>And:
>
>The bearing mfr. literature. (they should know, right!?)
>
>Ballendo

These are the two sources for info. I'd depend on the MFG
specifications first but Machinery's Handbook describes the
fits in more detail. I've found SKF's site useful:

www.skfusa.com

Their Interactive Engineering Catalog is very helpful and is
also available on CD. Don't be fooled, there are sections for
"bearing tolerances" and "bore/shaft tolerances". It does depend
on the service and use but SKF gives a good explanation.

I've found I can't hold the tolereances specified by the MFG. So
I just get as close as I can and put it together. Maybe when I
get my CNC up and running.... :-)

Hugh Currin
Klamath Falls, OR

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