Bambu Lab Extrusion Gear – Extruder Drive Gear for P1 / X1 Series
The Bambu Lab Extrusion Gear is the official extruder drive gear replacement for Bambu Lab printers. This precision gear grips the filament and pushes it into the hotend, working with the idler to provide consistent filament feeding for reliable extrusion.
Essential for restoring proper filament feeding when the gear becomes worn, clogged with debris, or no longer gripping filament reliably.
Bambu Lab Extrusion Gear Key Features
- Precision Teeth – Consistent filament grip
- Hardened Steel – Durable wear resistance
- Original OEM Part – Genuine Bambu Lab quality
- Proper Pitch – Optimal filament engagement
- Shaft Fitting – Precise motor shaft mount
- Direct Replacement – Same specifications as original
How the Extrusion Gear Works
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Filament Drive System:
The extrusion gear mounts on the extruder motor shaft. As the motor turns, the gear’s teeth grip the filament and push it forward. The idler bearing on the opposite side provides counter-pressure, ensuring consistent grip. This dual-gear or gear-and-idler system enables precise filament control.
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Compatibility
Compatible Printers:
Important: This extrusion gear is specifically for P1/X1 series. A1 series uses a different extrusion gear (sold separately). |
When to Replace Extrusion Gear
- Worn Teeth – Teeth smoothed or damaged
- Grinding Filament – Gear chewing instead of pushing
- Inconsistent Extrusion – Under-extrusion issues
- Filament Slipping – Not gripping reliably
- Debris Buildup – Teeth clogged with filament
- High Abrasive Use – After extensive CF/GF printing
Bambu Lab Extrusion Gear Specifications
| Brand | Bambu Lab |
| Part Type | Extrusion Gear / Drive Gear |
| Material | Hardened Steel |
| Function | Filament feeding |
| Compatibility | P1 Series, X1 Series |
Bambu Lab Extrusion Gear FAQ
Q: How do I replace the extrusion gear?
A: Follow the official Bambu Lab maintenance guides:
• X1 Series Extruder Replacement
• P1 Series Extruder Maintenance Guide
Q: How do I know if the gear is worn?
A: Signs include inconsistent extrusion, filament grinding sounds, visible wear on gear teeth, or the gear spinning without moving filament.
Q: Does abrasive filament wear the gear faster?
A: Yes, carbon fiber, glass fiber, and other abrasive filaments accelerate gear wear. Consider more frequent inspection if using these materials.
Related Products
Looking for other Bambu Lab extruder components? Explore our collections:
- Extruder Idler – Pressure bearing
- Extruder Motor – Drive motor
- Complete Extruder – Full assembly
- Bambu Lab Spare Parts – Full range



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