nasty rubbing noise from dryer when running
Sounds like guide wheels or something has worn out, Dries fine but sound is definitely metal on metal when drum rotates.
If the dryer makes noise, the belt may be frayed or damaged. If the belt is damaged, it will make noise every time it travels around the pulleys. The drive belt is a long, narrow band that wraps around the entire drum, then around a tension pulley and the motor pulley.
It is very common for dryer drum rollers to wear out. If the dryer makes noise, particularly a loud rumbling noise, one or more of the rollers may be worn out. After removing the drum from the dryer, inspect the rollers. If one is worn out replace all of them at the same time as a preventative measure.
Drum Roller Axle
Over time the drum roller axles can wear out, causing the rollers to wobble. If this happens the dryer makes noise. If the dryer is making a rumbling noise, check the rollers and axles. If any are worn out, replace them all at the same time.
Clumps of lint, socks, and other small articles of clothing can get past the lint filter and into the blower wheel. If the dryer makes noise, and the noise seems to be at a very fast pace, there might be something caught in the blower wheel. In addition, the blower wheel sleeve might be worn out, allowing the blower wheel to wobble on the motor shaft. If this happens, replace the blower wheel.
The drum bearing supports the rear of the dryer drum. If the dryer makes noise this bearing might be worn out. Replace the bearing if it is worn out. Do not lubricate the bearing, the lubrication will attract lint and dirt and accelerate the wearing process.
Drum Support Roller & Axle
It is very common for dryer drum rollers to wear out. If the dryer makes noise, particularly a loud rumbling noise, one or more of the rollers or axles may be worn out. After removing the drum from the dryer, inspect the rollers and axles. If one is worn out replace all of them at the same time as a preventative measure.
Drum Support Bearing
The drum support bearing is at the rear of the drum. If the dryer makes noise check this bearing. If it is worn out, replace the entire bearing.
If it sounds like a power drill, I'd guess something is wrong with the motor shaft. But in my own LG gas dryer, the metal-on-metal sound, with rumble, was because a drum roller got bent out of alignment as I put drum back after replacing said roller. Getting drum back in wasn't easy. The drum's rim chewed that back roller away until the rim scraped on the frame around the drum.
I myself have the same experience i have Unimac commercial drum is scratching the housing and its so loud ,i did some adjustment on the trunion mounting until it stop rubbing ,but I’m sure your trunion bearing need to be replace
Thank you STE6549 person who advised on the leveling… that fixed my scraping sound too!
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