Creality 3D Printer Parts 5PCS Brass Extruder Wheel 40 Teeth Drive Gear for CR-10.CR-10S,S4,S5,Ender 3,Ender 3 Pro,Ender 3 V2

I got this new extruder for my ender 3 max, old one had worn a groove from filament. So far so good. Easy to install, just remove tension spring for access and turn the gear to access grub screws. Print quality had huge improvements.

The relatively quick and painless replacement of my Flashforge Adventurer 3s original filament feed gear with this one resulted in a significant reduction the annoying filament slip-related knocking noises that most owners of my printer commonly complain about, and slightly improved print quality. I recommend this upgrade to anyone with a Flashforge A3 and Monoprice Voxel 3D printer. There are a couple easy to follow outube videos that walk you the process.

What an improvement. Pics show new one installed next to the old one. Best part is I now have spares in case I ever need to replace this one. Not hard to replace, just check out YouTube videos on replacement.

I replaced my pressed-on gear after it stripped out. This got my rig working again but after a few weeks I see that the brass teeth are wearing down already. I think it won’t be long before I’m replacing it again. I think stainless gears would be better

Really good drive gear for most printers out there. I like that it has two adjustable screws to keep it in place. It lets me adjust the gear slightly to an unworn spot on the gear as it wears naturally over time.

Only used one so far, but perfect fit with zero issues.

Works great!

My step motors cog was worn down and press fit. Ordered a new 40-42 and this set. Completely fixed my issue

worked perfectly on my 3d printer, the CR-10 mini. Thanks

Great quality, no burrs. Work perfectly, nice an truely round.