Move forced heated, cooled or ambient temperature air to specific spot areas with a direct drive centrifugal fan for your blower assembly. These high-performance products produce high air volume with low vibration for diverse air-moving applications. Also known as a blower wheel or squirrel cage fan, applications include ventilation, air conditioning, heating and dehumidifying in industrial and commercial applications. HVACR professionals rely on Grainger for quality direct drive centrifugal fan products for blower assemblies. Shop a great selection today.