Gear Motor Tread Cog-1 piece

These cogs let you interface our popular GM2/3/8/9 series gear motors with the very cool GMT tread links. They've been precision molded to mate with the gear motor's double-flat output shafts. They're so precise and snug, you might not even need to use the included mounting screw to lock the cogs on!

The GMTC Cog measures 38mm diameter x 15mm wide, and is made of the same long-life ABS plastic the tread links use.

Note: The cogs have an extremely tight fit on the GM8 & GM9. You may find filing the gearmotor output shaft down a wee bit a huge help to mounting the cogs.