Number of Blades: 4 or 5
Overall Dimension: 5-1/2"
Motor Shaft Size: 43/64" or 17MM
Set Screw Size (for motor shaft): 1/4-20
Screw Size to Secure Blade Arm to
Distance Between Blade Arm Screw
Holes (center to center): 2-1/8"
American Spirit, Fasco 994,
Please order by
See if you can
align the blade arm screw holes
of the old flywheel over the
white dots in the picture below.
If not, go to another picture
until you find one that you can
see white dots in all of the
blade arm holes you need.
center hole: 17MM or 43/64 IN.