Description
The MK8 Extruder Drive Gear is a vital component for your 3D printer’s extrusion system, engineered to provide the reliable filament grip needed for consistent print quality. Designed to mount onto the shaft of NEMA 17 stepper motors, this gear ensures that your filament is fed into the hotend with high torque and precision. Its carefully machined teeth provide a strong, positive grip on the filament without causing damage, scraping, or unwanted slippage.
This gear is specifically optimized for MK8 extruder assemblies and features a robust stainless steel construction, ensuring a long operational lifespan and high efficiency. The inclusion of a built-in grub screw allows for a secure, tight fit onto any standard 5mm motor shaft, preventing the gear from shifting during high-speed or long-duration print cycles.
Key Features
- Precision-Machined Teeth: Designed for maximum filament traction, facilitating smooth, jam-free extrusion.
- Durable Construction: Crafted from high-grade stainless steel for excellent resistance to wear and tear.
- Secure Shaft Mounting: Integrated grub screw ensures a locked-on fit to NEMA 17 stepper motor shafts (5mm bore).
- Optimized Size: Specifically tailored for MK8 extruder geometry to maintain consistent extrusion pressure.
Applications
- MK8 Extruder Systems: A direct, essential replacement part for standard MK8 extrusion assemblies found in many popular FDM printers.
- Maintenance & Repair: Ideal for fixing extrusion issues caused by worn or slipping drive gears.
- DIY Upgrades: A fundamental component for enthusiasts assembling or repairing custom printer extruders requiring a 9mm outer diameter gear.
Package Includes
- 1 x MK8 Stainless Steel Extrusion Gear
Technical Specifications
| Parameter | Specification |
|---|---|
| Item Type | Extruder Drive Gear |
| Compatibility | MK8 Extruder / 5mm Shaft |
| Material | Stainless Steel |
| Outer Diameter | 9 mm |
| Bore Diameter | 5 mm |
| Height | 11 mm |
| Weight | 3 g |
Caution: Ensure the grub screw is tightened firmly against the flat side of your motor shaft (where available) to prevent the gear from slipping during operation.














