jhdeval
Well-Known Member
I have a stupid question should the fan fit into the shroud or just as close to the fan hole as possible?
I have a stupid question should the fan fit into the shroud or just as close to the fan hole as possible?
Common to put 1/2 of fan thickness in shroud, 1/2 out. Dont know why, but that is what is written. and usually have about 1/2 inch clearance so a 18" would take a 19" hole: remember the motor rocks a little...
The reason that half the fan is exposed out of the shroud or in some cases the shroud has the fan outer edge exposed on the bottom half, is that the fan is not only axial flow but centrifugal / radial and allowing the air to spill off the rear half of the fan radially allows it to expel considerably more volume of air from the shroud plenum.
Well thank you for not making feel like an idiot. I looked online and could not clearly find an answer. One more question Is it possible to roll a circle without a roller? If so any suggestions on how would be awesome. Ohh and reason to not pop rivet the corners?