Multistage Fabricated Centrifugal blowers

Spencer multistage fabricated blowers cover an extensive line of styles and models used for a wide range of air/gas services in industrial, commercial, institutional and municipal applications. The three basic designs are standard overhung SOH (impellers mounted on extended motor shaft), four-bearing overhung 4BOH (impellers mounted on shaft coupled to motor shaft) and four-bearing outboard 4BOB (impellers mounted on shaft supported at both ends by self-aligning ball bearings, coupled to motor shaft).