if your an avid user like I was keep your top thumb screw cleaned out and lubed it wears out 10 times faster than the bottom one. Get rid of the annoying light that comes with it. Keep an eye on the underneath table screws ,they fall out. Your blade tension adjustment should be 2 to 2.5 if not your doing something wrong. Tighter than that will cause premature wear out. Best thing I ever did was take it apart and repack all the bearings I could with Valvoline synthetic grease. Only two bearings I could not take out to do so and one of them is real bad ,but lubing up the machine this way you would never know it has a problem. This bearing is on the bottom from mechanism above the degree wheel. I don't know what to call this assembly for you. but I love the machine ,at least you can do precision work with it , and quite ,not a whisper. if anybody knows of a better machine that's lasts with out fixing offen i'd like to know about it ,I hate down time.