Originally Posted by ThayerRags

I use 5/16” leather belting to make my own replacement belts to fit, but probably the easiest place to find a new v-belt for your Singer 20U is at an automotive parts store. The v-belt on my Singer 20U33 has a metal “clip” adjoining the two ends similar to most leather treadle belts. Remove the old belt and take it in with you. Have the clerk select a belt with the same width and tapper of your belt, but a little longer than yours. Cut the new belt to fit, drill small holes in the ends, and install the clip. A piece of stiff wire can be used to fashion a new clip if needed.

CD in Oklahoma