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Ev Archive for January 2002
1762 messages, last added Wed Jan 30 10:47:16 2002

[Date Index][Thread Index]

Re: Newbie wants grin :(



Roy LeMeur can correct me if I am mistaken, but I remember brush adj. was as easy as lossening a screw on the face and rotating the brush mounting plate. I came accross a couple of shaft couplings from Lovejoy, Boston Gear, and Browning in the Grainger catalogue. They seem to be fairly forgiving oy at least a few degrees of misalignment. I am busy adapting one for my pet project, I might be able to help another.
---------- Original Message ----------------------------------
From: Lee Hart <leeahart@earthlink.net>
Reply-To: ev@listproc.sjsu.edu
Date: Tue, 29 Jan 2002 14:22:21 -0800

>Lawrence Balogh wrote:
>> Once upon a time, I had envisioned using two of these E-tek motors
>> mounted shaft nose to shaft nose, with a single 1"  or 1.5" wide
>> synchronous drive pulley connecting both shafts.
>
>You'd have 4 bearings in line (2 in each motor). It might be a trick to
>get them all perfectly lined up to avoid excessive side loading and
>bearing failures.
> 
>> The brushes would, of course, have to be optimised for counter
>> rotations.
>
>These are PM motors. Do they have any brush advance? I'd guess no.
>
>> Does anyone know how difficult it would be to get them to share the
>> load more or less equally?
>
>Wire them in series; they would automatically run at the same load.
>-- 
>Lee A. Hart                Ring the bells that still can ring
>814 8th Ave. N.            Forget your perfect offering
>Sartell, MN 56377 USA      There is a crack in everything
>leeahart_at_earthlink.net  That's how the light gets in - Leonard Cohen
>
>