Because it’s a new take-out fan motor from Welling Service Co., made for air conditioner-humidifiers. Rated for 115VAC, 16W, spins approx 1400 rpm via a 2-1/2” x 5/16” threaded shaft which will most likely have a nut on the end. Has 12” long leads, (2) of which are for a 6uF capacitor (not included). Rotates counter-clockwise and measures 2-5/8" dia x 2-7/16" deep. Has (4) mounting holes on wings. Welling part #YSLB-16-002-001.

When you need a little gust, or maybe even a big gust, we have the blower for you. 115VAC squirrel cage blower motor assembly. It's 7-1/2" in diameter x 3" cage and 4-1/4" deep overall. These are takeouts from an airconditioner unit but in great shape as many of the units were new. It's has two speeds and includes the starting capacitor. Red is common with blue and yellow being the two speed legs. Just add a line cord and presto instant wind. Motor has (3) mounting holes. Weighs 3 LBS.

This takeout fan from an un-used AC unit draws 42W at 115VAC and spins both a 12” dia, 5-blade fan blade and a 7-1/2” x 2-3/8” squirrel cage at approx 900 rpm. The motor in the middle measures 3-3/4” dia x 3-1/2” with a 5/16” shaft that extends 2-1/2” out of one side and 2-1/8” out of the other. Has 14” leads and rotates clockwise. You’ll need a 250V 6uF start capacitor. UL.