Advice on LCP-POM wear?

[AHartman]

Hi all,

I'm designing a pair of hubs with 3 rollers sandwiched between them as part of a peristaltic pump. I'm trying to determine if POM rollers (compounded w/ PTFE and silicone, LNP's Lubricomp KP004) will have excessive wear if rolling against LCP (Vectra or similar, compounding not decided yet) bearing surfaces.

The application is not an extreme temp, low speeds (60 rpm) and low forces (3 lbs max force on a single roller). LNP doesn't have any wear data for LCP, and the LCP vendor I'm considering (Ticona) is checking with their engineers. I thought I'd post here to see if anyone has experience w/ these two polymers together or could offer some guidance in finding more info.

Thanks in advance for any help!

-Adam Hartman
Mechanical Engineer
Flextronics Medical
Dallas, TX, USA

 

[patprimmer]

Your already onto two of the three or four best sources.

I would add DSM in Evansville Indiana (originally Wilson Fibrefill) and the RTP company to the list for possible data.

Regards
Pat
See FAQ731-376 for tips on use of eng-tips by professional engineers &

http://eng-tips.com/market.cfm

for site rules

 

[Hidromar]

Hi!

Ticona (itself) has a document(Plain bearings made from engineering plastics) on which you can see a "small" relation of plastic/plastic combinations.

Althougth it isn't included POM/PEEK, you tan take the combination POM/PBT or PET

On the other hand you've got the point about tribology. This is a question for you to consider/test as soon as you are going to work with a tribological class of POM

http://www.hidromar.es