Lego Sprocket
thingiverse
Lego offers a Sprocket compatible with Large Link Treads in their Lego Technic line.
Download Model from thingiverse
With this file you will be able to print Lego Sprocket with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Lego Sprocket.