I have had the range hood fan come unglued from the motor shaft in a home stove vent hood, also.
I just put a hose clamp on it and let it be out of balance...
2013 Classic 30 Limited
2007 Silver Toyota Tundra Crew Max Limited 5.7 iForce
2006 Vivid Black Harley-Davidson Road King Classic
1999 Black Nissan Pathfinder LE
WBCCI #1811, Region 6, Unit 56