I sold my 6" Delta X jointer the other day. I took the rear cover off to tighten the belt for the new owner and noticed that the motor is an open style.
I have owned it for almost 5 years and never had a problem, and... it was covered in dust.. worked fine..
So I have to wonder.. if Delta put this type of motor on a jointer.. what is all the fuss with TEFC.
Has anyone ever had a problem with an open drip motor on a woodworking tool?