Compressor Fan Keeps Getting Hot
 

I have a Trane Outside unit. The compressor fan keeps getting hot and shutting off. I have replaced the capacitor and the fan motor. The new motor ran for about twenty minutes and the stopped. Pulled disconnect breaker let it cool for twenty minutes. The fan would run for about ten minutes and stop again. CAN ANYONE HELP ME. ITS REALLY HOT IN OKLAHOMA
Thank you

Is the fan blade installed in the correct direction?
Are the condensing coils clean?

is the motor rotation correct? correct voltage? is it wired properly?