3D printed gear from PA12 nylon for paper shredder 
 Amazon Basics B07MC4LV24
Material: Nylon  with carbon fiber 

Number of teeth on big side: 41  Diameter: 49,1mm
Number of teeth on big side: 8  Diameter: 17,5mm
Total height: 19,2mm

We can also make any gear for paper shreadder

 All gears was tested.