48K115 - Walter 48-K-115 Grinder Spindle Spacer Washer

Precision Mounting for Industrial Safety

The Walter Surface Technologies 48K115 Compensating Washer is a specialized abrasive accessory designed to solve a common but critical issue in metalworking: improper wheel fitment on angle grinders. In industrial environments, the interface between the power tool and the abrasive consumable is the single most important factor for operator safety and tool performance. This compensating washer acts as a precision spacer, specifically engineered for use with standard 5/8"-11 threaded spindles found on most professional angle grinders.

Often, when switching between different types of abrasive wheels—such as moving from a thick grinding disc to a thinner cutting wheel or a wire brush—the threaded portion of the grinder's spindle may be longer than the hub thickness of the new accessory. Without a compensating washer, the clamping nut may run out of thread and bottom out against the shoulder of the spindle before it actually tightens against the wheel. This creates a dangerous situation where the wheel appears secure but can slip or detach during operation. The 48K115 fills this gap, providing the necessary spacing to ensure the nut applies full torque to the wheel hub.

Manufactured to Walter's exacting standards, this washer is made from durable steel that resists compression and deformation under high torque loads. Unlike generic washers which may be uneven and cause wobble, the Walter 48K115 is flat and balanced, ensuring that it does not introduce vibration into the grinding assembly. This protects both the grinder's bearings and the operator's hands from fatigue. It is an essential component for any tool crib or MRO inventory, ensuring that a wide variety of abrasive products can be safely mounted on standard equipment without compatibility issues.

Whether you are using Walter's own premium abrasives or other standard wheels, this compensating washer ensures that your equipment setup meets safety protocols. It is particularly useful when using thinner Type 1 or Type 27 wheels where the mounting flange depth might otherwise interfere with proper tightening.