Wind Turbine Blade Hubs
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!
- 1/4" bolt holes are 15/16" center to center and are spaced perfectly for our Raptor Generation 4 blades
- Each wind turbine hub is laser cut for precision
- Perfectly balanced, will not bend
- Evenly spaced cooling holes to prevent overheating
- Made in the USA
| 5 Blade Hub | 6 Blade Hub | 7 Blade Hub | 9 Blade Hub (Use for 3 or 9 blades) | 11 Blade Hub | 13 Blade Hub | |
| 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) |
| 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) | 11 in (279.4 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) | 7 lb 2 oz (3232 g) |
| Special Coating: | Zinc plated | N/A | Zinc plated | Zinc plated | Zinc plated | N/A |
*These Missouri Wind and Solar hubs are a requirement for the Raptor Generation 4 Blade warranty.