Bambu Lab AMS Active Support Shaft Assembly Roller

The Bambu Lab AMS Active Support Shaft Assembly is a dual-function roller component used inside the AMS (Automatic Material System). It serves two purposes: supporting the filament spool so it sits securely in the AMS slot, and actively driving the spool to rotate during filament feeding and retraction. This active drive helps ensure smooth, consistent spool rotation—reducing the risk of filament tangles, feeding resistance, or failed colour changes during multi-material prints.

Key Features

• Supports the filament spool and keeps it seated securely in the AMS
• Actively drives spool rotation for smooth, controlled filament feeding
• Official Bambu Lab replacement part for guaranteed fit and function
• Easy snap-in installation—no tools required
• Silicone rubber grip ensures reliable contact with the spool

Specifications

• Compatibility: Bambu Lab AMS (original AMS for X1/P1 series)
• Materials: Plastic, silicone rubber, metal
• Colour: Black, silver
• Package Size: 60 × 60 × 30mm
• Package Weight: 20g
• Manufacturer Part Number: SA001

What's in the Box

• AMS Active Support Shaft Assembly × 1

Ideal For

• Replacing a worn or damaged support shaft causing spool feeding issues
• Restoring smooth spool rotation after slipping or grinding noises
• Fixing filament tangles or inconsistent feeding during AMS colour changes
• Keeping a spare on hand for quick AMS maintenance

If your AMS is experiencing inconsistent spool rotation, grinding sounds, or filament feeding problems, a worn active support shaft assembly may be the cause. Replacement is straightforward—simply press the new shaft into the front slot until it clicks into place, ensuring the gear end aligns with the internal drive gear. After installation, manually rotate the shaft to confirm it turns smoothly before loading filament.