Upgraded Hardened Steel Extruder Gear Assembly for Bambu Lab A1 / A1 Mini

Upgrade your Bambu Lab A1 or A1 Mini extruder with this precision-engineered hardened steel gear assembly. Designed to eliminate the wear and inconsistent filament feeding common with stock extruder gears, this upgraded set delivers significantly improved durability, filament grip, and print reliability.

Compatibility

• for Bambu Lab A1
• for Bambu Lab A1 Mini

Materials

• Feed Gear (Driving): Nano-coated high-strength mold steel — Rockwell hardness HRC 62–65; surface hardness HV 1000–1200
• Driven Gear: Hardened steel with knurled surface for enhanced filament grip
• Handle: Upgraded aluminum alloy for extended service life
• Other Components: POM (Polyoxymethylene) and aluminum alloy; CNC machined

Key Features

• ✅ Integrated Shaft Design: Superior gear concentricity for more consistent filament feed
• ✅ Nano-Coated Feed Gear: HRC 62–65 hardness for dramatically improved wear and corrosion resistance
• ✅ Knurled Driven Gear: Increased friction for reliable filament transport
• ✅ Aluminum Alloy Handle: Upgraded from original plastic for longer service life
• ✅ CNC Precision Machined: Tight tolerances for consistent performance

What’s Included

• 1x Extruder Gear Assembly (handle, driven gear, large gear, driving gear, bearing, pin shaft)

Installation Tips

1. Power off your printer and unload filament before starting.
2. Remove the extruder assembly from the print head per Bambu Lab’s service guide.
3. Swap the existing gear set with this upgraded assembly.
4. Reassemble and run a filament load/unload cycle to verify smooth operation before printing.

⚠️ Refer to the official Bambu Lab Wiki for step-by-step disassembly guidance.

Eparts Channel is not responsible for any damage caused during installation.