Dottie Bug,
The Singer 101 has a potted motor(all encased) and is gear
driven, so no need for a belt. It has a spider-like oil wick system for oiling the machine. It was Singer's first machine
made exclusively for electric use.
The Singer 15-91,15-125 & 201-2 also have the potted motor.
Is your machine in a cabinet? I hope you post pictures soon.
Sharon W. in Texas