Hatchbox Alpha Idler Pulley Wheel
Needed a replacement in a jam, had to scale this up 3% when printing to fit bolt/bearings correctly. Worked for a short time. Changing print orientation or material would probably work to strengthen part more.
This thing was made with Tinkercad. Edit it online https://www.tinkercad.com/things/9hH0dqGZ6hP