Basic arbor to fit motor/generator shaft and mount 1/2" ID impulse runner. Shaft sizes 3/8", 1/2", 5/8", and 5/8" with keyway. Will also fit ES&D pelton. Specify RH or LH thread. Use LH thread with turgo spoons above to direct water away from generator. Pelton may use either. All basic arbors are plated steel.
Custom arbor to fit 7/8", 28mm or 1-1/8" keyed shaft (shaft coupling required), or threaded to fit most Ford or GM alternators. Specify RH or LH thread for arbor shaft (1/2-20RH or 1/2-20LH). The 7/8" and 1-1/8" arbors are stainless, while 28mm and 17mm auto alternator arbors are plated steel.
Couplings for 7/8 or 1 1/8 inch shafts. Plated steel w. hex pinch bolts. Stainless avail upon request.