12 Tooth 5 mm HTD 8 mm Bore Pulley With Flanges

These worked but I had to drill the bore out to fit over 8mm motor shafts. This left the bores a little wonky, plus the teeth got chewed up a little trying to hold them with channel locks while I drilled. I expected better for $14 bucks

Chuck

These are nice pulleys. They're a standard sized pulley that have been bored out to 8mm and a 2mm keyway added using a broach. The set screw hole is non functional. I used these on a set of Neo motors and the bore was undersized enough that I had to press them on.

It's a great quality item! Helps out reduce weight on your robot and keep a good performance on it!