No registration or passwords; no pop-up ads -- just aloha, fun, & answers.
(as an eBay Partner & Amazon Affiliate earns from qualifying purchases).
Home /
T.O.C.
Fun
FAQs
Good
Books
Ref.
Libr.
Advertise
 
Help
Wanted
Current
Q&A's
Site 🔍
Search
pub  Where the
world gathers for metal finishing
Q&As since 1989



-----

Reducing Coefficient of Friction Between Metal and Rubber




Q. I have an application I'm researching, and essentially I'm trying to find the method (coating, mechanical polishing, etc.) that best reduces the coefficient of friction between a dynamic o-ring and the metal walls it operates in, as in a pistoning motion. Cost being a mild factor and temperature ranging from slightly warmer than room temp down to rare exposures of negative 40-70° C (i.e. liquid CO2).

Jeremy Wiggins
- Land O Lakes, Florida, USA
May 6, 2012



A. Hi Jeremy.

Probably the most common traditional coating is hard chrome plating. The chrome offers a lower coefficient of friction than steel, and the microcracks hold lubricant. An interesting demo I saw decades ago, but never forgot, involved a small cone-shaped hard-chrome plated item that the lecturer placed base down / point up on his desk and defied anyone to pick it up :-)

Regards,

Ted Mooney, finishing.com
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
May 7, 2012




(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)

Q, A, or Comment on THIS thread -or- Start a NEW Thread

Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.

If you are seeking a product or service related to metal finishing, please check these Directories:

 
Jobshops
Capital
Equipment
Chemicals &
Consumables
Consult'g, Train'g
& Software


About/Contact  -  Privacy Policy  -  ©1995-2024 finishing.com, Pine Beach, New Jersey, USA  -  about "affil links"