48K533 - Walter 48-K-533 Grinder Spindle Spacer Washer

Precision Fitment for Industrial Grinding

The Walter Compensating Washer (48K533) is an essential hardware accessory designed to facilitate the proper mounting of abrasive backing pads and wheels onto angle grinders. In industrial environments, the interface between the power tool and the abrasive media is critical for both safety and performance. Variations in grinder spindle lengths or housing designs can sometimes lead to clearance issues, where a backing pad might rub against the tool's guard or gear housing. This compensating washer acts as a precision spacer to resolve these conflicts.

Engineered by Walter Surface Technologies, this washer is specifically sized for standard 5/8"-11 spindles, making it compatible with a wide range of North American angle grinders. It is often required when installing specific Walter backing pads, such as those used for resin fiber discs or flap discs, to ensure the assembly sits at the correct height relative to the spindle shoulder. By providing the necessary offset, it ensures that the abrasive product rotates freely without interference, preventing heat buildup, equipment damage, and potential safety hazards.

Constructed from durable steel, the 48K533 is built to withstand the high torque and rotational forces inherent in grinding operations. It is a reusable component that should be kept in any tool crib or maintenance kit where angle grinders are frequently used. Whether you are adapting a new backing pad system or troubleshooting a fitment issue on a specific grinder model, this compensating washer provides the reliability and precision required for professional metalworking applications.