Re: [CAD_CAM_EDM_DRO] Re: Bearing mounting revisited

Yes and no...depends on the type of bearings you use. If you use non separable bearings, you won't need the extra retainer...the inner race is stopped by the step on the bearing shaft (assuming the opposite end of the shaft can't move lengthwise)...the outer race is stopped by the retainer as drawn. If you use bearings where the races will come apart...like Timken bearings, then you would have to add a retainer for the outer race. This retainer could be identical to the other retainer (depends on bearing design). In any case, all fittiing can be done on the one part.

By the way....as some one pointed out...its a good idea to fix the bearing assembly so it can't move up, down or sideways after installation. This can be done using dowel pins thru the housing/retainers at assembly.

Smoke
-----Original Message-----
From: Hugh Currin <currinh@...>
To: CAD_CAM_EDM_DRO@egroups.com <CAD_CAM_EDM_DRO@egroups.com>
Date: Friday, October 27, 2000 1:14 PM
Subject: [CAD_CAM_EDM_DRO] Re: Bearing mounting revisited


Smoke:

At 05:02 PM 10/27/00 +0000, you wrote:

>I've just posted a file in jpg format that shows a REALLY simple way
>to support your ball screw shaft and bearings.

Don't you need a lip or retainer on the inside of the bearing
housing? As drawn won't the bearings be able to slide in towards
the lead screw?

Thanks.

Hugh Currin



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