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 purchased these for spare parts for my printer. I havent used them yet but they look identical to the factory parts.

Very durable accurate fit works perfectly.

Works very good in my CR-10

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.

Soes exactly what it is supposed to do and is a direct replacement for the Ender 3 printer.

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

Works as expected. The teeth on the one that came with the printer finally wore out after continously printing for months on end. Still on the first one in the pack after about a month of it being on the printer. So far so good.

Great product.

Direct replacement. No calibration needed

I was having a problem with my Flashforge Adventurer 3C printer with the filament not feeding properly. These gears are a good replacement for the stock feed gear. My problem ended up being something different, I had to calibrate the platform with a piece of receipt paper to completely resolve the problem, but these gears do work perfectly so if you have this printer, don’t be afraid to order them. I did notice they come with two set screws, I only used the one set screw that goes on the flat part of the stepper motor and simply removed the second. Took about 10 minutes to change this part. Hope this helps!