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

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.

Good gear, ID is 5.04mm, OD is 10.95mm. Seems to be really good quality and will last a long time extruding pla and petg.

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-10s 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!

Fixed my Maker select V2 with these, dont know if these match the factory gear as I dont think mine had a factory gear in it when it failed. But it matched whatever mine had. Only critique is that the gears seemed like they got banged around in transit so there were some light existing marked/gouges on them. I suspect its not an issue, I just used the one with the least and it worked great.

Got these for the ender 3 extruder they work much better than the brass ones that came on it.

Works very well, definitely an upgrade from the brass. And fits my JG Maker Magic printer.

It seems like the stock brass gears are wearing down very quickly. These SS gears have eliminated a lot of extruder skipping. It might just be me, but I did not have to make any other adjustments to the machine other than installing the gears. One should probably recallibrate your esteps. I will probably get to it sometime soon, but at the time I was printing PPE 24/7 with 5 machines and they kept printing good quality so...

Always had problems with my ender 3 with under extrusion with certain filament brands at normal temps. Work around was to increase temp which caused stringing or blobs till I found these steel gears for the extruder. Made a difference reminds me of the original ones you find on a wanhao i3. Must buy for Ender 3.

Fit perfectly on my creality cr-10 mini. Still waiting to to see the durability.

These are exactly what I needed and they work great