Specifications of Motor are:  

• 1.5/1.0 Amps
• CCW Rotation as Viewing Shaft End
• 5/16" X 1-1/4" Long Shaft, w/ Flat end of shaft accepts a C clamp
• 1-1/2" Stack
• 4 Stud Mount, Shaft End, Studs Measure 1-7/8" across Center to Center, 1" apart
• Three Wire Plug Cord Attached
• Designed for specific Broan-Nutone Range Hoods

Designed to fits models: CBD1, CBD3, CBX1, NS65, QL1, QML