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

Was starting to have trouble with the extruder skipping. Replaced the stock brass gear with one of these and problem solved. Cant really speak to the durability as Ive just started a print with the new one, but the improvement in extrusion was immediate. For the money you really cant go wrong if youre not quite ready to upgrade the extruder.

Works well

Greatest

Seem solid and work great in my mk8 extruder.

I was hesitant at first because from the pictures they look like they only have a single grub screw. I took a chance because of the price. Was relieved when I found that they do have 2 grub screws. Easy to install on my Ender 3 v2 with upgraded aluminum extruder. I did have to readjust my esteps slightly, but thats 100% expected. Havent noticed any skips and seems to wear less than the brass one it came with.

These wheels work and fit perfectly but they wear out quickly. I do a lot printing and have to replace them every few weeks. If you dont print 24-7 this might not be an issue for you. I dont mind having to replace them because of how cheap they are. I like to clean and lubricate my printer regularly so I just replace the wheel when I am doing my preventative maintenance.

Replaced the stock pulley on my Ender 3 with this one; the teeth are definitely more aggressive than the one that comes from the factory. That said, quality hasnt changed any (I ordered these after a failure that made my last pulleys teeth fill with PLA) but they are well made and work every bit as well as the stock piece. Ive heard from others that they improved extrusion issues they were experiencing, although i cant say that as I was not having issues before. Would purchase again.

Super upgrade over the brass ones on the Ender 3

Product arrived fast and fit well on my x one 2 and solved my under extrusion issue as well as the constant clicking from the old gear slipping.

Works well