The motors are single phase 3.6 HP. When the motors have shut themselves off, they have been quite hot to the touch. Yes, they are fan cooled; the shop is always about 75- 80 degrees, and the motors have no sawdust build-up. Bearing sound good. Saw runs smooth and strong. SCM techs I talked to years ago seemed to think the motors were just wearing out. I did replace the main switch at one point, and that didn't change anything. I will see about measuring the amp draw, but electrical things are not my cup of tea. I'm just wondering what to say to the potential buyer without totally scaring him off. I will check to verify the cost of new motors, in case he ever needed to replace them.??