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Wind Turbine Blade Hubs

Our Wind Turbine Blade Hubs have a 17 mm hub center center mounting hole that fits most older GM/si type alternators.  If your PMA or PMG rotor shaft isn't 17 mm, see our wind turbine hub adapters to make them compatible with our hubs!

Hub Specifications:

  • Raptor Generation 4 Blade Hubs:
    • 1/4" bolt holes are 15/16" center to center
  • Raptor Generation 5 Blade Hubs:
    • 5/16" bolt holes
  • Bolt holes are spaced perfectly for our Raptor blades
  • Each wind turbine hub is laser cut for precision
  • Thick steel hubs are perfectly balanced, will not bend
  • Evenly spaced cooling holes to prevent overheating
  • Made in the USA


5 Blade Hub

6 Blade Hub
(Use for 2, 3, or 6 blades)

7 Blade Hub
9 Blade Hub
(Use for 3 or 9 blades)
11 Blade Hub
G5 3 Blade Hub
G5 5 Blade Hub
Blade Series:Raptor Generation 4 or similar
Raptor Generation 5 or similar
Thickness:
3/16 in
4.76 mm
3/16 in 
4.76 mm
3/16 in 
4.76 mm
3/16 in 
4.76 mm
1/4 in 
6.35 mm
1/4 in
6.35 mm)
1/4 in 
6.35 mm
Diameter:
6 1/2 in 
165.1 mm
6 3/4 in 
171.45 mm
7 in 
177.8 mm
8 in 
203.2 mm
9 in 
228.6 mm
8 3/8 in 
212.7 mm
8 3/8 in 
212.7 mm
Weight:
1 lb 7 oz 
652 g
1 lb 9 oz 
709 g
1 lb 11 oz 
765 g
2 lb 4 oz 
1021 g
4 lb 
1814 g
3 lb 8 oz 
1588 g
3 lb 8 oz 
1588 g
Special Coating:Zinc plated

N/A
Requires painting

Zinc plated
Zinc plated
Zinc plated
Zinc plated
Zinc plated

*These Missouri Wind and Solar hubs are required for the Raptor Blade warranty.

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Wind Turbine Blade Hubs

  • $20.99


Available options


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Tags: hub, wind turbine hub, G4 hub, G5 hub, blade hub