Precision Brand 25126 Round Arbor Shim 0.005 in Steel 10pk

Product Description

The PRECISION BRAND 25126 is a steel round arbor shim used to fill gaps, correct misalignment, and set precise clearances on rotating equipment. At 0.005 inches thick with a 0.5 inch inside diameter and 0.75 inch outside diameter, this shim is suited for fine tolerance adjustments on arbors, shafts, and spindles. The steel construction provides consistent thickness and durability under load. It is installed by mechanics, millwrights, and maintenance technicians working on pumps, motors, fans, and similar rotating assemblies. Each package contains 10 shims to support multi-layered stacking applications or to allow multiple installations from a single order.

Arbor shims like the 25126 are commonly used in industrial and commercial maintenance settings where precise axial spacing is required. Typical applications include setting blade clearances on cutting equipment, aligning pulleys and sprockets, and correcting shaft end-play on motors and pump assemblies. The 0.005 inch thickness makes this shim particularly useful for fine-increment adjustments where a stack of shims is built up to reach a target dimension. Residential and light commercial HVAC, plumbing, and pump installations where shaft alignment is critical are also common use cases.

Key Features

• Steel construction for consistent thickness under compressive load
• 0.005 inch nominal thickness for fine-increment shimming
• 0.5 inch inside diameter fits standard arbors and shafts of that size
• 0.75 inch outside diameter provides adequate bearing surface around the bore
• Package of 10 shims supports stacking and multiple installations

Compatibility

Designed as an OEM-style replacement shim for rotating equipment requiring a 0.5 inch ID arbor shim with 0.75 inch OD in steel construction.

Installation Notes

Arbor shims are installed by qualified mechanics or maintenance technicians. Always de-energize and lock out the equipment before disassembling any rotating assembly. Use a micrometer or calibrated gauge to verify shim stack thickness before reassembly. Do not use shims that are bent, nicked, or out of flat, as they will not produce accurate spacing.