What sound does a bad car alternator bearing make?

[OSophia]

When a car alternator bearing fails, it may produce a metallic grinding noise, a continuous swishing sound, or a hissing sound. Bearings are crucial components in modern mechanical equipment, primarily functioning to support rotating mechanical parts, reduce friction during operation, and ensure rotational precision. Method for replacing alternator bearings: After disassembling the motor, you can also perform an alternator maintenance check, inspecting the condition of the carbon brushes and the wear on the commutator, and replace the carbon brushes if necessary. For older vehicles, most alternator bearings are not repaired once damaged but are instead replaced with a new alternator.