Teflon [PTFE] sliding on Aluminium or steel
Teflon [PTFE] sliding on Aluminium or steel
(OP)
Good Morning,
I would like to ask you about cooperation between Teflon material and an aluminum plates, below description.
I have a plate made of aluminum that moves relatively to the ground (in horizontal directions) on ball units (standard element eg. from SKF catalogue). I would like to replace ball units with teflon discs, below questions:
1. How does teflon cooperate with an aluminum plates?
2. What kind of roughness do you recommend on an aluminum plate surface that works with teflon?
3. Do you recommend you other material for a plat, anti corrosion steel, or other.
4. What kind of roughness do you recommend on a steel plate surface that works with teflon?
attached you schema of the idea
[http://files.engineering.com/getfile.aspx?folder=e...]
Thank you in advance.
BR
I would like to ask you about cooperation between Teflon material and an aluminum plates, below description.
I have a plate made of aluminum that moves relatively to the ground (in horizontal directions) on ball units (standard element eg. from SKF catalogue). I would like to replace ball units with teflon discs, below questions:
1. How does teflon cooperate with an aluminum plates?
2. What kind of roughness do you recommend on an aluminum plate surface that works with teflon?
3. Do you recommend you other material for a plat, anti corrosion steel, or other.
4. What kind of roughness do you recommend on a steel plate surface that works with teflon?
attached you schema of the idea
[http://files.engineering.com/getfile.aspx?folder=e...]
Thank you in advance.
BR





RE: Teflon [PTFE] sliding on Aluminium or steel
Please don't try to reinvent the wheel, and expect inexpensive, excellent performance.
RE: Teflon [PTFE] sliding on Aluminium or steel
http://www.igus.com/
Also, this one. They specialize in steel bearings with special coatings and make some in a flat configuration.
https://www.ggbearings.com/en
RE: Teflon [PTFE] sliding on Aluminium or steel
If you're looking for cheap & cheerful consider UHMWPE - not as slippery but better wear resistance.
If you're looking at doing it properly the links the other 2 give are worth looking at, not sure if they are mentions on Jboggs links but might want to look into materials like Turcite.
What is Engineering anyway: FAQ1088-1484: In layman terms, what is "engineering"?
RE: Teflon [PTFE] sliding on Aluminium or steel
I designed a sliding door that consisted of a 1/8" aluminium 6061-T6 plate, sliding in a pair of PTFE slides. The primary problem I was solving was that I had to fit everything into a very small height. I had the aluminium anodized and I called up a 16μin finish on the edges. There was a little bit of rattling I could do nothing about, but otherwise, it worked. It flew in an aircraft and everything!
Teflon has a low coefficient of friction against anodized aluminium, and all sorts of other stuff. I paid attention to the possibility that the door might rotate in the tracks and jam. You need an absolute clearance, so the thing will rattle a bit. Any preload spring will create more friction.
--
JHG
RE: Teflon [PTFE] sliding on Aluminium or steel
RE: Teflon [PTFE] sliding on Aluminium or steel
However, I don't have much context for that claim or evidence to support it.
What is Engineering anyway: FAQ1088-1484: In layman terms, what is "engineering"?