I am getting very few runs out of my pinion gears printed in PLA.

I am getting very few runs out of my pinion gears printed in PLA. Is there any way to combat this or do I need to print them in a better material? Thanks and sorry for all of the questions I post.

Look up the video on baking PLA by Tom Salanderer

I can confirm they work extremely well when printed from nylon. Also abs parts post processed with acetone vapor held for a very long time. For me it doesn’t seem to matter which nylon I use so I stick with cheap trimmer line.