Hey;
They do not list the belts by model, only size. A 10" lathe could have a 1/2" x 40, 45, or 51" length depending on whether it was a floor or cabinet model. There is also a 5/8 x 29" belt listed for 10, 11, and 12" models, but it does not specify what models those are. This should get you close enough to measure and guess which you have.