I have the standard 1AMP motor you find on EBAY.
I have to replace them every year. I have about a 200 ft run with three garage door pulleys sitting on bolts...they spin freely and fairly efforrlessly. The motor has a small vBelt to the first pulley and the whole thing is controlled by a AC fan motor.
I'm just wondering why I'm burning through these things at an alarming rate....any suggestions appreciated.