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The Milwaukee 43-34-0825 is a genuine OEM steel inner back flange (also known as a backing flange or inner flange) designed for 7-inch and 9-inch grinders and sanders. This fixed disc-shaped component mounts directly to the tool's arbor shaft to provide a flat, stable rear clamping surface for abrasive wheels and cutting discs. It ensures proper wheel centering and balance, preventing vibration and lateral run-out during high-load operations.
Features
Genuine Milwaukee OEM replacement part
Fixed disc-shaped component for arbor shaft mounting
Provides the rear clamping surface for seating abrasive wheels
Flat face design ensures even clamping contact to prevent vibration
Maintains wheel centering and balance on the spindle
Prevents lateral run-out and potential wheel failure
Works in conjunction with the outer clamping nut to secure wheels
Designed for high-load grinding and sanding environments
Specifications
Manufacturer: MILWAUKEE ELECTRIC TOOL CORP
Part Number: 43-34-0825
Component Type: Back Flange (Inner / Backing Flange)
Material: Steel
Thread Size: 5/8"-11 TPI
Outer Diameter (OD): 3.24"
Compliance Standards: ANSI B7.1
Compatible Tool Sizes: 7", 9"
Specific Model Compatibility: 6089-31 (Serial B46C)
Package Quantity: (1) Back Flange
Applications
Milwaukee 7-inch Angle Grinders
Milwaukee 9-inch Angle Grinders
Milwaukee 7-inch Sanders
Milwaukee 9-inch Sanders
High-load grinding operations
High-load sanding operations
Abrasive wheel mounting
Cutting disc mounting
Compatible with Milwaukee 6089-31 (Serial B46C) 7" or 9" Sander/Grinder
