Precision Brand 25130 Round Arbor Shim Steel Pack of 10

Product Description

The PRECISION BRAND 25130 is a round arbor shim manufactured from steel, designed to fill precise gaps and maintain accurate spacing between rotating components. At 0.01 inches thick with a 0.5-inch inside diameter and a 0.75-inch outside diameter, this shim provides consistent, repeatable positioning in arbor and shaft applications. Each package contains 10 shims, making it practical for bench stock or job-site use. Machinists, millwrights, and maintenance technicians rely on close-tolerance shims like these to eliminate play, correct alignment, and achieve proper preload in assemblies without custom fabrication.

Arbor shims are commonly used in machine tool setups, saw arbors, pump shaft assemblies, and general industrial equipment where tight dimensional control is required. The 0.5-inch bore fits standard arbor shaft diameters in that range, and the 0.75-inch outside diameter keeps the shim within typical hub and bearing seat dimensions. This product is suited for light industrial, maintenance, and repair applications where steel shim stock is specified.

Key Features

• Steel construction provides durability and resistance to deformation under clamping load
• 0.01-inch thickness allows for fine incremental adjustment of axial spacing
• 0.5-inch inside diameter fits standard arbor and shaft sizes in that range
• 0.75-inch outside diameter stays within common hub and seat dimensions
• Arbor shim geometry (round, centered bore) suits rotating shaft applications
• Packaged in quantities of 10 for convenient bench or field use

Compatibility

Designed as an OEM-style replacement and general-use shim for arbor and shaft assemblies requiring a 0.5-inch bore, 0.75-inch outside diameter, and 0.01-inch thickness in steel.

Installation Notes

Arbor shims are typically installed by machinists or maintenance technicians during machine tool setup, shaft alignment, or bearing preload adjustment. De-energize and lock out all equipment before disassembling any rotating assembly. Verify shim thickness with a calibrated micrometer before final assembly to confirm the correct stack is achieved. Do not use damaged or burred shims, as surface irregularities will introduce runout and defeat the purpose of the shimming operation.