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Wow, thats amazing. What sort of RPM does a bearing like run at?

lol, they are the paper making industry, we cover the rollers in a paper making machine. i thought the plant made plastic wrap when i started 12 years ago lol, paper machine and roller pics below

Oh wow, that's some impressive machinery!

Doesn't look like that wood likes the rollers very much.

lol yeah, we had a cable break a few years back and put a 2' deep X 8' diameter hole in the concrete (3' thick concrete), It gets real fun when we balance the rolls lol, Its like a tire balance machine on steroids lol, When you get that much weight moving at 7000 FPM not to much would stop it lol.

What type pf paper gets rolled onto this thing? Not newspaper- too wide?

we get all types of rolls, Fine paper (Printing paper, notebook paper) and liner board (Brown paper for making boxes) Im not sure my names are correct, paper machines are impressive, i have been all over the US in Paper Mills and Roll plants, Watching paper fly off a machine is crazy, and when the sheet breaks you end up in a paper storm lol. I seen a sheet break one time, the bay door for unloading rolls was at the end of a paper machine, the sheet broke and covered the tractor trailer in about 3 feet of paper before they got he machine to stop lol. they have pits under the machines to route paper in case of breaks, they will keep the machine running and spitting paper out until they can thread it through the machine.

Here is a video of a mill i used to see rolls from at our shop.

[youtube]qpy_uZyV7L0[/youtube]