Suitable for A2212 brushless external rotor electric machine
High quality with excellent performance,Stainless steel motor shaft has exquisite processing technology makes it glossy, uneasy to fade.
They are motor shafts with flat surfaces.
for the top motor , flying mainly prototype planes build can bend up shafts quickly enough. rather then trying to straighten out a bent prop shaft, the bearings and the rest will help on the motors to simply switch out instead.