stainless wear
stainless wear
(OP)
I have a 316 L shaft acting as a push rod, that rides in a sleeve. The sleeve is of an unknown alloy, mabey brass. I Would like to make a new sleeve out of 316 L (the old sleeve wears out fast). It was suggested to me that having the stainless together would be bad because one part of two moving parts needs to be softer than the other. Does anybody think the stainless together would be a problem? If so why? This is on a rotary filler.





RE: stainless wear
How much shaft wear are you getting? any?
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Rust never sleeps
Neither should your protection
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RE: stainless wear
Comeback with a little more information on your setup is there any lubrication, the environment, and speed of your shaft, etc.
RE: stainless wear
RE: stainless wear
RE: stainless wear
You probably should go to a higher alloy stainless (and higher strength) for the shaft. I would also suggest a non-metalic bushing. There are some very good high performance plastic bearing materials out there (my favorites are from Victorex).
= = = = = = = = = = = = = = = = = = = =
Rust never sleeps
Neither should your protection
http://www.trent-tube.com/contact/Tech_Assist.cfm
RE: stainless wear
ILLIUM 8
Waukesha 88
RE: stainless wear
Carpenter Galltough
Fry Steel Nitronic 60
RE: stainless wear
Food grade grease might be Crisco shortening as lubricant?
Getting a sleeve in FDA approved plastic (white color) and good wear characteristic would be the key.
The conditions do not seem to be hot or severely corrosive. The clean-in-place wash cycles are probably the most harsh conditions for the sleeve.
You might be able to make a good sleeve of 316 SS by adding a wear resistant coating of silicon carbide ceramic (plasma arc spray). Some centrifugal pump users specify the ceramic coating to minimize the wear under a Teflon ring seal on SS shaft.
It might depend on the shaft diameter as to how practical it would be to get the ceramic coating inside the sleeve or onto the shaft contact area.
RE: stainless wear
http://www.kolsterising.bodycote.com/
Regards,
http://www.welding-advisers.com/
RE: stainless wear
John Reinbold
"Chance favors the prepared mind"
www.stainlessfoundry.com
RE: stainless wear
You may want to check out fiberglass filled chemloy. Vespel may be another choice that does not require any lubrication at all. You have to check with the design guide for these matterials with the manufacturer or distributor of these materials as bushing or bearing products.
RE: stainless wear
John Reinbold
"Chance favors the prepared mind"
www.stainlessfoundry.com