BIQU Extruder Pulley 36Teeth Bore 5mm Stainless Steel Drive Gear for 1.75mm & 3mm 3D Printer Filament (Pack of 5pcs)

A little bigger than stated 5mm inside diameter.

I got this as an upgrade to my CR-10S, which seems to work a lot better than the factory brass one. After installation all you have to do is calibrate your E-Steps, which I used a video by SanTube 3D off YouTube to explain the process. Afterwards I would suggest re-flashing the firmware with the new calculation of your E-Steps as some printers may vary, so you wont have to keep putting the E-Steps in every time when you turn off or restart your printer.

Works great and doesnt wear out on carbon fiber

Worked good on my cr-10s

Installed on a Creality CR-10s. Worked like a charm and have a few extra.

quick fix to my extrusion problems!

Greatest

Perfect replacement for sender 3v2. Old brass piece was worn out from clogs but this get it back up and going in no time. Will need to adjust esteps.

These are nice fit my ender 3. I do recommend adding some loctite to the set scew or it will come loose everytime

Im only getting about 12 hours of print time before the teeth are too warn to work. I have only used PLA. The stock brass drive gear lasted MUCH longer