Bambu AMS 2 Pro Active Support Shaft Assembly (SAA034)

Official Replacement Roller • Active Spool Drive • Genuine Bambu Lab Part

Overview

The Bambu AMS 2 Pro Active Support Shaft Assembly (SAA034) is the official replacement active roller for the Bambu Lab AMS 2 Pro. Unlike the passive support shaft, this assembly is powered to actively rotate the filament spool during loading, unloading, and printing, providing controlled filament movement and maintaining consistent tension throughout the filament path.

If the active roller becomes worn or damaged, replacing it helps restore smooth spool rotation and reliable AMS operation.

Why replace the Active Support Shaft Assembly?

• Genuine Bambu Lab replacement part
• Actively drives filament spool rotation during printing
• Maintains consistent filament tension and movement
• Helps improve AMS loading and unloading reliability
• Factory-fit replacement for dependable long-term performance

Key features

• Powered spool drive roller for the AMS 2 Pro
• Reduces feeding resistance during material changes
• Supports smooth automatic filament loading and unloading
• Precision OEM assembly for reliable operation
• Direct replacement for the factory-installed active support shaft

Compatibility

• Bambu Lab AMS 2 Pro

Please verify your AMS model before ordering.

Common signs of replacement

• Spool does not rotate properly during loading or unloading
• AMS reports feeding or retraction errors
• Increased filament drag or inconsistent feeding
• Roller surface becomes worn or damaged from extended use
• Excessive noise during spool movement

What's in the box

• AMS 2 Pro Active Support Shaft Assembly ×1
• 693ZZ Bearings ×2

Installation & maintenance

• Power off the printer and AMS before servicing
• Remove the filament spool before replacing the shaft assembly
• Install the replacement in the same orientation as the original
• Verify smooth spool rotation after installation
• Periodically clean filament dust from the rollers to maximize service life

Local advantages (Convoy-Westcan, Winnipeg)

• Same-day or next-business-day dispatch when in stock
• Winnipeg: free local courier on eligible filament and accessory orders over $60
• In-store pickup available with knowledgeable local support

Policy snapshot

Replacement parts and mechanical components are final sale once installed. Approved returns must be new and unopened; restocking fees and non-refundable shipping may apply.