How to Measure a Fan - Series 4
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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
$2,798.97
Overview
Cast in Aluminum, this Series 4 21-3/4″ Recessed Hub Fan were first made to resemble General Electric plastic fans with a back clamping, split hub. It can be machined to your exact specifications by Jenkins or be provided as-is for in-house machining. Please provide exact machining specifications or call Jenkins at 800-438-3003 for machining questions.
Specs
Series 4 fans were first made to resemble General Electric plastic fans with a back clamping, split hub. Other manufacturers have machined 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.
- Blade Height (A) - in.
- 5.375
- Hub Diameter (B) - in.
- 6.375
- Hub Thickness (C) - in.
- 3
- Overall Diameter (D) - in.
- 21.75
- Hub Recess (E) - in.
- -0.75
- Plate Diameter (H) - in.
- 21
- Max Bore Allowed - in.
- 5.75
- Number of Blades
- 11
- Material
- Aluminum
- Typical Frame
- 500
- Weight - lbs
- 34