Vibration in saws, jointers and other tools is annoying and it spoils accuracy. The main villain is usually V-belts that have assumed a set shape. The Power Twist belt is a chain of smooth running 1/2" wide links that never take a set, and go on/off with a twist.
We were amazed at the difference changing the belt made in vibration reduction and the smoothness of cuts. Make the belt any length you need just by adding or removing links. Comes in a 4 ft. length. USA