Low friction plastic
Low friction plastic
(OP)
I have problems with friction of a pice made from PA 66 with 23% GF in combination with a thermoset phenolic resin piece. I would like to know the best material to substitute the PA 66.
When was the last time you drove down the highway without seeing a commercial truck hauling goods?
Download nowINTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS Come Join Us!Are you an
Engineering professional? Join Eng-Tips Forums!
*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail. Posting GuidelinesJobs |
|
RE: Low friction plastic
In order to answer your question, we would have to know the functionality of the existing nylon piece in order to determine if we could use different types of plastics.
What attributes should this piece achieve?
Wear
Heat
Strength
Contamination
Impact Resistance etc..
RE: Low friction plastic
RE: Low friction plastic
RE: Low friction plastic
RE: Low friction plastic
Try Delrin. It's similar to nylon in strength characteristics, and is very wear resistant (used for gears alot)
http://www.dupont.com/enggpolymers/english/products/delrin.html
RE: Low friction plastic
Its true that acetals are inherently lubricious compared to most materials, however, there are enough differences in properties such as HDT, TS & TE that they may not be right for your application.
You should consult with a company like LNP that has studied friction and wear. They have whole product lines designed for wear and friction resistance.
Tell them your design criteria and the environment that the part will be in and they can help select an appropriate grade.
RE: Low friction plastic
Since you are uesing PA66/ Glass you have a mechanical application, urethanes and Teflon, acetals will not surfice. I would recommend our Fluorolon 3960, a PPS formulated for beaings applications, good to 400 F, will have better chemical
resisitance that PA66, an excellant stable bearing material. We can injection mold
in conventional machines and it will have somewhat less shrinkage than PA66.
Bill Vardeman
<www.aptehcno.com>
RE: Low friction plastic
You should consider using PTFE; it has very low friction and it can be used with temperatures up to 150 degrees C.
It cab also be filled with various materials to enhance some properties.
Koen