Centrifugal Upblast Exhaust Fan, Model CUBE-140, Belt Drive, 1/2HP, 115V, 1Ph, 906-2518 CFM

Model CUBE Centrifugal Roof Exhaust fans are belt driven. These fans are specifically designed for roof mounted applications. Exhaust air is discharged directly upward, away from the roof surface. Fan wheels are centrifugal, backward inclined, and constructed of aluminum. Adjustable motor pulleys allow for final system balancing. All model CUBE fans stocked at Michigan Air Products bear the UL-762 label, approved for use in commercial kitchen applications. Fans are stocked with 115/1Ø motor with thermal overloads. Motors can be easily changed to 3Ø with advance notice. Roof curb required for new roof installations (see related products below).
Availability:  11 in stock
SKU: CUBE-140-5
Product # CUBE-141-5G has been replaced with CUBE-140-5. The product change is in name only. Form, fit and function remain the same.


  • Windband is continually welded to the curb cap and drain trough for leakproof construction
  • Centrifugal wheel provides high-efficiency and minimal sound
  • One-piece aluminum windband with rolled bead provides extra rigidity
  • Cooling fins located on top of fan wheel draw outside air through a large breather tube directly into the motor compartment extending motor life
  • Wall or roof mountable


  • AMCA Sound & Air
  • High Wind and Hurricane
  • Seismic
  • UL/cUL 762



Installation, Operation and Maintenance Manual


Products specifications
Attribute name Attribute value
Base/Panel Length X Width 22 x 22 in
Curb Cap Size 22 in
Impeller Diameter 14 3/4 in
Roof Opening Width x Roof Opening Length 18 1/2 x 18 1/2 in
Base Height 1 3/4 in
Bearing Size 3/4 in
Height 29 3/4 in
Weight 79 lbs
Damper Width x Damper Height 16 x 16 in
Overall Diameter 28 7/8 in
CFM Range 906-2518
FRPM Range 1105-1390
Mounting Location Roof, Wall
Drive Type Belt Drive
Impeller Type Centrifugal Wheel
Impeller Material Aluminum
Housing Material Spun Aluminum
Max Inlet Temp 400 °F
Warranty Length 1 Year