How are ceiling fans designed so well for so many decades that they just keep running without much noise or fall apart? It’s like there’s almost no friction.
In: Engineering
Due to their much larger sizes, ceiling fans don’t need to spin very fast to achieve good airflow. Ceiling fans might just operate between 150 to 300 rpm, where as desk fans can be in the 1000 to 2000 rpm range and have much more noise.
Lower rotational speeds causes less stress on bearings, lower vibrations and overall quieter operation.
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