Are there any differences between bearings used on fans and other ordinary bearings?

Are there any differences between bearings used on fans and other ordinary bearings?

If the model is the same, it makes no difference.From the point of view of the category, there are more taper and more heart in the gearbox; the fan usually has two ends adjustable heart or one end of the cylinder with diagonal contact at one end.

the fan usually has two ends adjustable heart or one end of the cylinder with diagonal contact at one end.

If the model is the same, it makes no difference.From the point of view of the category, there are more taper and more heart in the gearbox;