The AC55 is a common Azure motor, never heard of an AC75, if you post pictures perhaps someone here can identify it.I have just purchased this motor and controller. Cannot find any references to this motor anywhere on google! Can anybody shed some light on specifications? Thanks. Aldo.
That is an older Lincoln Electric motor, 254T frame if I'm not mistaken. They made (or wound) them for Solectria before the Azure acquisition. It was a decent motor but not outstanding in the TENV package. You can see in the photo the hack job where they (someone other than Lincoln) have modified it for ventilation and coolant tubes on the frame. Indicates to me it may have been run hot. Good luck with it.I have not received motor yet. Here are the only pics I have.