A failing or worn-out rear drum bearing or support shaft in a residential clothes dryer typically produces a loud, deep rumbling, roaring, or grinding noise during operation that often sounds like a heavy train passing by or metal grinding against metal. As the heavy rotating drum turns against a degraded or dry bearing assembly, the friction creates intense vibration that echoes through the cabinet housing. You can troubleshoot bearing wear easily by spinning the drum by hand with the power off. You can verify that your bearing is bad when noticing excessive vertical play or hearing a harsh grinding sound during manual rotation confirms that you must replace the rear bearing kit to restore quiet operation.
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