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 had some issues with the filament not feeding properly. This part fixed my issue! It is also great to have some spares!

Works as intended

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

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

Direct replacement. No calibration needed

Great product.

Good quality

Good quality, used on Ender 3x

The stock stepper has a press fit gear which is challenging to remove once worn. Cut it off, dont bother with a puller. These replace the press fit gear on the arbor, but use two set screws with a vaguely 1.5mm hex hole to tighten them down. Tightening them down is problematic. Sometimes they hold fine, sometimes the set screws do not provide enough friction and the gear slips. If that happens then good luck diagnosing intermittent extrusion issues. One of mine finally slipped enough to stop extruding part way through a print. If you understand that problem and think it is solvable then this will be good value. I hit my arbor with a small diamond file to give the screws some purchase and that works very well. Up to you.

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