- Sizes: Model RC: 12" through 36".
- Housing: Fiberglass, Hetron 99P ® polyester resin, Class 1 flame spread of 25. Standard color is gray.
- Wheel: Backward curve non-overloading design. Fiberglass, HetronFR992 ® vinyl ester resin, Class 1 flame spread of 25. Metal hub insert is completely encapsulatedin fiberglass. Fiberglass cap protects taperlock bushing. Final resin rich coat is applied for increased corrosion resistance.
- Base: Sizes 12" thr 18" have a solid fiberglass base and motor supports. Sizes 22" thru 36" have a heavy gauge all-welded steel base which is treated, primed and epoxy coated.
- Shaft: Steel, turned, ground and polished. Shaft is completely encapsulated with a fiberglass sleeve where it penetrates the housing.
- Shaft Seal
- Hardware: 304 Stainless steel. Any hardware exposed to the airstream is encapsulated in fiberglass.
- Inlet: Slip fit style.
- Outlet: Flanged.
- Motor Cover: Fiberglass construction, provided as standard on drive arrangement10 fans. Protects shafts, bearings, drive and motor.
- Drive: Adjustable sheave on units with a 1-3 HP motor. Fixed sheave on units with a 5HP and above motor. 1.5 SF v-belts.
