RE: Question about lubricants for linear rail.
As I Kluber microlube is unavailable/expensive to get, I also looked at some alternatives. What about Kroon ball bearing grease for the x axis? It's readily available in the Netherlands and also quite cheap. The viscosity is lower but still in the range of the other alternatives.
Specs:
N.L.G.I. Class 2 DIN 51 502, KP 2 K-30
Penetration 25 °C, 0,1 mm: 280
Dripping point, 190 °C
Temperature range: -30/130 °C
Base oil viscosity, 40 °C: 195 mm²/s
4-ball welding load: 2600 N
RE: Question about lubricants for linear rail.
Searching through many forums and discussions, I keep finding that Super Lube with PTFE is recommended for CNC, 3D FDM and Resin printers I have.
So many recommendations without trials. I am moving to Poly bearings so this may not be a question in the future.
RE: Question about lubricants for linear rail.
Kluber is very proud of their greases and charges accordingly. The 261 is way cheaper if you buy a larger amount. It would be great if a small group bought a cartridge and divided it up. The rail is THK and they have specific greases for it. I have to believe they know best, but I don't know if the greases are easily available or how much they cost. https://www.thk.com/jp/en/products/accessories_for_lubrication/thk_original_grease/
Misumi also sells them- https://us.misumi-ec.com/vona2/detail/221000092815/?seriesCode=221000092815&tab=catalog&Page=1
This is a case where, though I'm a big fan, I wouldn't use Superlube and I wouldn't assume compatibility with what's in there. I suspect the rail was lubricated by THK, not Prusa, but anything is possible.