ratation:clockwise,viewing from drive end operating ambient：-40℃-90℃ operating speed：6000r/min max.speed：8000r/min 4,performance parameter： cold：(14v 80a)u=13.5v,n=1500 r/min i=37a, u=13.5v,n=6000 r/min i=80a,voltage regulation:u=14.5v±0.2 (28v 60a)u=27v,n=1500 r/min i=25a, u=27v,n=6000 r/min i=60a,voltage regulation:u=28.5v±0.3 the alternator has eight paw-poles mounting dimensions can be customized. choice belt-pulley weight:9kg