> they continuously cycle on/off and have worn out the bearings Does cycling a fan on/off wear bearings faster than being on all the time? Naively I would have

> they continuously cycle on/off and have worn out the bearings Does cycling a fan on/off wear bearings faster than being on all the time? Naively I would have assumed that bearing wear is a function of time enabled and speed, with # of spinups a negligible factor.