Part # 4-158

21-3/4″ OD Fan

Series 4 Recessed Hub Fans have been machined by other manufacturers to allow the hub on the back to function as a bearing cover, or used a set screw near the back to mount the fan on a short shaft.

  • -0.75” hub recess
  • 11 blades
  • 5.75” max bore allowed



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