Product review (4 stars): Good OEM Product, but try Super Lube First
This part was ordered to repair the squeaking and squealing our Whirlpool Duet Dryer with steam started making.  We couldn't wait for the part to arrive, so I took the dryer apart hoping to fix the noise temporarily so we could do laundry.  After thoroughly cleaning the machine with a vacuum, I took off the drum rollers and the belt roller.  From research on the internet, it was repeated not to use any oil or grease in the machine because it would attract lint and make the problem worse.  However, that didn't seem quite right because the rollers came from the factory greased (there was residue when I removed them).  In any case, I found a dry lubricant, Super Lube Dri-Film (http://www.amazon.com/Super-Lube-11016-Aerosols-Dri-Film/dp/B000RFRM4U/).  I put this on the roller shafts liberally.  It was a temporary fix, but has been going strong for several weeks of constant laundry without a squeak.

I have not replaced the rollers and belt with the new ones yet.  I'm saving them for backups when the machine starts to squeak again.  Hopefully that won't be for a while.