I bought this here lamp
and it works fantastic except for one thing. When you stretch the arm to set it up for use, this screeching, grating sound comes out of the circular "hubs" shown at the top and 1/2 way down the stand. It's gotten, um, extremely irritating like scraping your fingernails down a chalkboard
Instructions say when you're not using it, you need to return it to its default position - as pictured - to ease up on the tension. So this noise happens a lot!
I'm concerned about using WD40 since there are springs involved. I tried pouring some talcum powder into the offending hubs, but that didn't help.
P.S. I have earplugs and headphones already. Looking for more of a "root cause" solution! Thanks much.