@Tc1388 Take the belt off and turn the machine by hand to see if it makes any unusual noise. With the power off and the belt off, turn the motor pulley and see what you hear. Try it without pressing the pedal, and with various amounts of pressure on the pedal.
When searching for the location of a noise, you can take a short length of garden hose (or similar), put one end against your ear, and move the other end to check locations the noise is coming from. You don't need to press the open end of the hose against the machine, just close to it. It helps to eliminate other noise distractions and home in on the source area.
Tom