Too much information Rodger O:)
Jerry, I think this is the lubricant (Syncolon) that my proctologist
used.
Rodger Fry PS. I couldn't resist this. ----- Original Message ----- From: "Joe Bauman" <josephmbauman@yahoo.com> To: "Utah Astronomy" <utah-astronomy@mailman.xmission.com> Sent: Tuesday, June 02, 2009 6:24 PM Subject: Re: [Utah-astronomy] Worm Gear lumbication
That sounds great, Jerry. When I replaced my gears with "Bucks Gears," Peterson Engineering Corp. sent a small plastic bag of their super-duper grease, whose name I don't know. But it was red. Is the new stuff red also? Thanks, Joe
--- On Tue, 6/2/09, Jerry Foote <jfoote@scopecraft.com> wrote:
From: Jerry Foote <jfoote@scopecraft.com> Subject: [Utah-astronomy] Worm Gear lumbication To: utah-astronomy@mailman.xmission.com Date: Tuesday, June 2, 2009, 4:55 PM
As some of you may know, I am refurbishing an old Celestron 22" for the University of Nevada at Reno. As part of that work I am fitting new worm gears on both axes. The RA gear is a custom 21" 360 tooth gear with a 14.5" gear on Dec.
I have never been happy with the Lubriplate #105 I have used for years on worm gears. Over time it breaks down with the lithium portion getting thick and the oil portion getting gummy.
So I went looking for a new lubricant.
My test setup was the 21" gear with moderate spring pressure for the worm engagement.
With the Lubriplate the average of 5 measurements of torque on the worm was 43 oz-in.
With the new lubricant it was 22 oz-in.
The new lubricant is Super Lube Synthetic Grease with Syncolon (PTFE). It has an operating temp range of -45 F to +450 F. I bought a tube of Item # 21030 (3 oz.) on the Internet.
How this grease behaves down the road I don't know but by cutting the worm torque almost in half I'm willing to see.
Jerry Foote ScopeCraft, Inc. 4175 E. Red Cliffs Dr. Kanab, UT 84741 435-899-1255 jfoote@scopecraft.com
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