This clever, simple hub design allows you to interchange blade sets quickly and easily and or explore the effects of using different blade angles. The hub can be press fitted to the shaft of many small DC generators, attach your own blades and begin experimenting. The improved stainless-steel insert can take a beating in your classroom year after year without failing!
- Diameter: 2.25 in
- Max number of dowels: 12
- Size of shaft hub press fits onto: 2 mm