50cfm bathroom exhaust fan motor for the V2270-50 and V2280-50 bath fans with side exhaust. 2850RPM. 2-prong plug. Mounting bolts measure 1-7/8" apart. Motor turns counterclockwise when viewing from the back. Splined shaft measures 3/16" diameter x 1-1/4" long. Pushes onto numerous wheels or blades including those blades which fit on a flat-sided shaft.