Zeberoxyz 2PCS Set GT2 Synchronous Wheel 20&60 Teeth 5mm Bore Aluminum Timing Pulleys with 2PCS Length 200mm Width 6mm Belt (20-60T-5B-6)

Ok

It is a good item.

Pay attention to the bore size. I ordered these thinking the smaller pulley will fit on a standard nema stepper motor shaft. The bore on the small pulley is too large but that’s my fault for not paying closer attention.

Not used them yet but they fit the shaft well, look good, time will tell how they hold up.

Works perfectly.

Fast delivery

I bought the 20-60T-10B version because I expected this to fit inside a 20mm ID bearing. As you can see from the image, the dimensions showed a 42mm outer diameter (44mm actual), 20mm flange (25mm actual), and a 10mm bore. As you can see from my measurements, the only correct thing was the 10mm bore.What is confusing is that these dimensions don't even match any other version sold under this listing, so I was not just accidentally sent another part. Something is fundamentally wrong with the listings.If you don't need specific dimensions, they work great! Otherwise, it's anyone's guess what you will receive.

I purchased this for a project I am building. upon receiving these, it was noticed that the main bore is the correct size, but where the threaded holes for the lock screws are, the material seams to be pushed into the main shaft bore and is causing an inference. I relieved this with sandpaper in a drill and problem was resolved.If you are looking for a cheap set of drive gears with low torque applications, these are for you.