I designed this gear to replace the original one in my paper shredder.

The outer gear is a d45 t47, and the smaller gear is d16.8 t10.

I used ESUN ePA nylon, and to make it even more resistant, I annealed it for 90 minutes at 80°C.

After a month of use, it works without any issues and saved me $18 on AliExpress.