generator reliable, Stamford Type of AC generators, Three Phase, IP23, Class H, Rated voltage 400V, 110-690V for option, ... COUPLING:LYG senes alterators have two kinds construction.LYG senes Single-bearing. engine adaptor to SAE #OO,0 ,1/2 ,1 ... ,2 ,3 ,4 ,5; ∞uphng diSCSto SAE#6.5 ,75 ,8 ,10 ,11.5 ,14 ,16,18 ,21LYG ... #OO ,0 ,1/2. 1,2 ,3. 4 ,5 Brushless synchronous generator