Diagnosis
A grinding or scraping noise during high-speed spin is typically foreign object damage or a failed spider arm bearing.
How to Fix It
Immediately stop the cycle. Inspect the drum. Remove any visible foreign objects (coins, bra underwires, keys). Run a Tub Clean cycle on Hot with two cups of white vinegar to check if noise persists without a load.
If That Didn't Work
The noise is likely mechanical. For the WF53BB8700AT, a grinding spin noise often points to a worn drum spider arm. This is a major repair requiring a full tub disassembly. Contact Samsung service for diagnosis.
Heads Up
Underwires and zippers are common culprits. Always fasten hooks and zippers and use mesh bags for delicates. The grinding will not resolve on its own.