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

These gears grip the filament very well. They don't slip and generally provide nice results. In 3D printing, there are always little things that add up and these are a good inexpensive item to ensure that the whole system is running smoothly over long periods of time. Most people will have good results with this on a single gear extruder. The only weakness I have seen is that with certain prints that have a lot of retractions, there will be flattening of the filament. This may lead to under extrusion or even complete blocking of the Bowden tube. So if a certain print has fine detail such as fine embossed text, the retractions will add up and begin crushing PLA filament before the filament reaches far into the Bowden tube. Hence, this will lean on a slicer setting for Max Retractions.

Much better than the normal brass bits. Went through the brass ones quite regularly. Haven't even had to swap one of these out yet. Fits right on just as the brass ones do, so easy enough to install. Holds it's place quite well. Have had minimal adjustments since I put it on. Prints have noticeably improved.

Not sure what I was using before, but these saved my printer to now print TPU like gang busters! If you are struggling with printing TPU, these are grippy and work. It may not be your only problem, but it will eliminate a variable for why it may not be working..... (TPU is hard to print). Worth the price and should last a lifetime.

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 hasn't changed any (I ordered these after a failure that made my last pulley's teeth fill with PLA) but they are well made and work every bit as well as the stock piece. I've heard from others that they improved extrusion issues they were experiencing, although i can't say that as I was not having issues before. Would purchase again.

I bought these last year and replaced all my printers with these. And they are far better then one comes stock. The stock wore out so quick. Once I put these on i haven' had any problems with filament not getting pulled or filament slipping. there are currently being used for my CR-10's and Hatchbox alpha and not one issue. These are really high quality and at this price point its hard not to get them. I highly recommend getting these and having some lying around in case anything happens. Its better to have spares then to be down while new ones get shipped. Again these are much better then stock. Highly recommend!

I used this gear to replace my stock brass gear on my Anet A8. I somehow managed to strip the teeth on the original gear. Figured I might as well go overkill on the replacement. This stainless steel gear does great on my extruder. It grips the filament and doesn't let go until I press the release lever. I would highly recommend this as a first upgrade to a direct drive extruder.

A vast improvement over my stock brass gears. If you are having extruder issues, this is well worth a try to fix the problem. Used on a stock Ender 3 extruder, and I had no need to change e-steps (checked before and after, same result). YMMV, but this fixed my under extrusion.

El engrane de latón se había desgastado, cambié a uno de estos y funciona mejor.

This is exactly what I was looking for to replace the worn out Gear on my Ender 3.5 for that price is a great! I'll have enough replacements for years to come

Bien recu bonne datte et exactement comme la commande je recomande

I got these for my Ender 5 Plus because the stock brass one was worn out allot.If you get these make sure you adjust your E steps for the extruder.The base E steps for Ender 5 Plus is 93, but to get 100mm of filament, you needed to change it to 100 with the factory Extruder. With this Stainless Steel one I had to change my E-steps to 113 to get 100mm of filament. So far it's been working really well. No more skips.

Fits ender 3 great