Hudson Tuf-Lite® III 4000KW wide chord fan hub parts, 11 to 20 ft

4000KW specifications

Fan diameter

11 to 20 ft

Blades

Tuf-Lite III KW wide chord, white. 4 to 12 per fan

Bushings

Q-2 (1" to 2.62"), R-2 (2.68" to 3.62"), S-2 (3.68" to 4.19")

Blade clamp halves

Epoxy coated aluminum (standard), unpainted aluminum or epoxy coated ductile iron

Clamp bolt torque

120 ft-lb lubricated, 130 ft-lb dry

Tip clearance

FRP or metal fan stack: 3/8" to 3/4". Concrete: 1/4" to 3/4"

Seal disc

By blade count. Tell us yours and we'll match it

Nameplate example

APT 14KW 6 2 7/8" BORE

Sizes covered: 11, 12, 13, 14, 15, 16, 17, 18, 19, 20 ft. On the nameplate these read APT 11KW, APT 12KW, APT 13KW, APT 14KW, APT 15KW, APT 16KW, APT 17KW, APT 18KW, APT 19KW, APT 20KW, followed by the blade count.

4000KW hub assemblies

Hudson lists 4000KW hubs by fan diameter, blade count and bushing. Tell us those three and we'll match the hub, seal disc and clamp parts to your fan. Get in touch.

How to read a 4000KW nameplate

Hudson fans carry an adjustable pitch code on the nameplate. APT 14KW 6 2 7/8" BORE breaks down like this:

• APT: adjustable pitch fan.
• The number: fan diameter in feet.
• KW: the blade, here Tuf-Lite III wide chord. H is Tuf-Lite II, K is Tuf-Lite III, KW is Tuf-Lite III wide chord and M is Tuf-Lite IV.
• The next number: blade count.
• The bore: shaft size, where it's given. Large fans are often ordered without it.

Match the bore to a bushing: Q-2 fits 1" to 2.62", R-2 fits 2.68" to 3.62", S-2 fits 3.68" to 4.19" and U-1 fits 4.25" to 5.50". Read those off the nameplate and get in touch. We'll match the parts.

Specifications from Hudson's published 4000KW installation manual, put in our own words. Common parts for every series, including clamp bolts, hub spools and seal discs, are on the Hudson parts page.