I put new rollers on my dryers. I cleaned the old shaft and the rollers rotated smoothly. After 2 days, the dryer was making noise and opened to check it and found that the rollers are not rotating smoothly. There was a thin layer of black stuff making the roller tight over the shaft. This time I cleaned both the inside of the roller and the shaft with brake fluid. I rotated the shaft by 180 so new surface is on top. Everything was good for a week and then the rollers got tight again. Next time I cleaned and put some dry silicone lubricant, but in a week the same result. I read here that there is no need for lubricant. Is it just bad quality rollers?

I bought the 4392067RC kit. Not sure what came with it. So that is probably it. Your site sells W10314173, so I assume that is the heavier one I need.

Is Whirlpool.com an official site? I see that they offer only this kit 4392067RC for maintenance. Your site offers this kit and it is a lot cheaper than buying 4 rollers and the idler, but says it is not compatible with my dryer. Is this kit the right one.

Thank you, that was the correct OEM part for a reasonable price. My dryer hasn't been this quiet for a long time. Never buying non OEM parts again. The bad roller has roughed up the shaft a little. I rotated the shaft to expose new surface on top. Hopefully this will last a while.