48M413 - Walter 2-inch to 1-1/4-inch Arbor Reducing Bushing Pair

Precision Arbor Adaptation for Industrial Grinding

The Walter Surface Technologies 48M413 Reducing Bushing is an essential accessory designed to bridge the gap between large-arbor abrasive products and standard industrial grinding equipment. In the metalworking industry, equipment versatility is key to maintaining efficiency. Often, shops possess high-performance wire brushes or abrasive wheels with a standard 2-inch arbor, yet their available bench or pedestal grinders may utilize a 1-1/4-inch shaft. This mismatch can render valuable consumables useless without the proper adapter. The 48M413 solves this problem instantly, providing a secure and precise reduction that allows for immediate equipment utilization.

Engineered with the same commitment to quality as Walter's premium abrasives, these bushings are manufactured to strict tolerances. A loose or poorly made bushing can lead to wheel run-out, dangerous vibrations, and uneven wear on the abrasive media. The Walter 48M413 ensures concentricity, meaning the wheel spins true around the shaft axis. This balance is critical not only for the quality of the surface finish but also for the longevity of the grinder's bearings and the safety of the operator. By eliminating wobble, these bushings help maintain the structural integrity of the wire brush or wheel during high-RPM operation.

These bushings are typically supplied as a set to support the wheel from both sides, ensuring uniform clamping pressure when the flange nut is tightened. They are compatible with a wide array of Walter wire brushes and can also be used with other abrasive products requiring the same dimensional adaptation. Whether you are setting up a deburring station, a rust removal operation, or a general-purpose grinding bench, having a supply of reliable reducing bushings ensures that you are never limited by shaft size incompatibilities.

Key Technical Benefits:

• Vibration Control: Tight tolerances reduce radial run-out, preventing machine vibration.


• Universal Fit: Standardized sizing fits most 1-1/4" shafts on the market.


• Durability: Resists compression and heat generated during heavy-duty grinding tasks.


• Safety: Prevents wheel slippage and off-center mounting risks.