Derale High Performance Flex Fan 18 Inch Stainless Blade Black Hub

This 18" high performance, standard rotation flex fan features 6 stainless steel blades and a black powder coated hub and is rated for engine speeds up to 8,000 rpm. Great for applications where space is at a premium. Dimensions: Diameter 18-1/4", Flange bolt spacing 1-3/4' - 2-1/4", Depth 1-1/8", Mounting surface to front 1/4", Mounting surface to rear 7/8", Blade pitch 50°.