Steve,
2 images came up. Wow, I used to refurbish assembly equipment and haven't seen anything like this either.
Is there a bearing that gets pressed into this?
If so, maybe someone didn't line it up correctly and stressed the gear while pressing it in.
They look like radial stress cracks to me.
Jerry Dengler
Production Manager
Pergamon Corporation
380 Crooked Lane, Unit# 3
King of Prussia, PA 19406-2567
U.S.A.
(610) 239-0721 Phone
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Steve Gregory
Sent: Thursday, August 20, 2020 1:48 PM
To: [log in to unmask]
Subject: [TN] Near catastrophe avoided!
Hi all,
I'm trying something with Google photos where you can share multiple images
with a link and I want to see if this works.
We had to have Mycronic (Mydata) come in for our MY19 as we had something
going on with the motion. Our technician here noticed metal particles in
the bearing lubrication of the head which ain't good. The machine has
60,000 hours power on time, so it's been around awhile.
Got the drive belt off and then started looking at things, we were shocked
and at the same time grateful for what we discovered. The toothed roller on
the left hand side of the drive was full of radial cracks and was close to
coming apart and no telling what would have happened if it did. The
Mycronic field service engineer said he's never seen anything like it and
he's been with them in excess of 25-years. Said belt replacements occur
somewhere between 30,000 - 50,000 hours, but he's never seen a roller crack
like this:
https://photos.app.goo.gl/9Jhsqrc55P4zzAP16
Steve
--
Steve Gregory
Kimco Design and Manufacturing
Process Engineer
(208) 322-0500 Ext. -3133
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