48K146 - Walter Replacement Grinder Flange Washer

Precision Mounting Hardware for Industrial Grinding

The Walter 48K146 Arbor Washer is a critical component designed to ensure the safe and effective operation of your abrasive power tools. In the realm of industrial metalworking, the integrity of the connection between the power tool spindle and the abrasive medium is paramount. This arbor washer is engineered by Walter Surface Technologies to meet the rigorous demands of heavy-duty grinding, cutting, and finishing applications. Manufactured from high-grade steel, it provides the necessary durability to withstand the high torque and rotational forces generated by industrial angle grinders.

Using the correct mounting hardware is not merely a matter of fit; it is a matter of safety and performance. A worn or mismatched washer can lead to uneven pressure distribution on the abrasive wheel, causing vibration, wobble, and potentially catastrophic wheel failure. The 48K146 is precision-machined to provide a flat, stable surface that clamps the wheel securely against the backing flange. This ensures that the abrasive disc runs true, maximizing the life of the consumable and delivering a consistent surface finish on the workpiece. For MRO managers and safety officers, ensuring that all shop tools are equipped with genuine, non-deformed flanges and washers is a key step in accident prevention.

This replacement part is specifically designed to be compatible with select Walter grinders and abrasive systems. It serves as a direct replacement for lost or damaged original equipment, restoring the tool to its factory specifications. Whether you are maintaining a fleet of grinders in a fabrication shop or managing tool crib inventory for a manufacturing plant, keeping spare arbor washers like the 48K146 on hand minimizes downtime. When a washer is dropped and lost in a busy shop environment, having the correct replacement immediately available ensures that production schedules are not impacted by minor hardware issues.

Key Technical Benefits:

• Structural Integrity: Resists deformation under clamping loads.


• Vibration Control: Promotes balanced wheel rotation.


• Safety Compliance: Helps meet ANSI and OSHA guarding and mounting standards when used correctly.