Hudson Tuf-Lite® III 5000K fan hub parts, 20 to 30 ft

5000K specifications

Fan diameter

20 to 30 ft

Blades

Tuf-Lite III (K), teal green. 6 to 12 per fan

Bushings

R-2 (2.68" to 3.62"), S-2 (3.68" to 4.19"), U-1 (4.25" to 5.50")

Blade clamp halves

Powder epoxy coated die cast aluminum (standard), powder epoxy ductile iron or coal tar epoxy ductile iron

Clamp bolt torque

120 ft-lb lubricated, 130 ft-lb dry

Tip clearance

1" to 1-1/2"

Seal disc

A 76" seal disc kit

Nameplate example

APT 28K 8

Sizes covered: 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30 ft. On the nameplate these read APT 20K, APT 21K, APT 22K, APT 23K, APT 24K, APT 25K, APT 26K, APT 27K, APT 28K, APT 29K, APT 30K, followed by the blade count.

5000K hub assemblies

Hudson lists 5000K 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 5000K nameplate

Hudson fans carry an adjustable pitch code on the nameplate. APT 28K 8 breaks down like this:

• APT: adjustable pitch fan.
• The number: fan diameter in feet.
• K: the blade, here Tuf-Lite III. 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 5000K 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.