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The PRECISION BRAND 25133 is a round arbor shim designed for precise equipment alignment and spacing in mechanical and industrial applications. At 0.02 inches thick with a 0.5-inch inside diameter and 0.75-inch outside diameter, this steel shim provides consistent, tight-tolerance fill between mating surfaces. Arbor shims are a standard component in setups involving grinding wheels, saw blades, and rotating equipment where proper seating and minimal runout are critical. Each package contains 10 shims, making it practical to stock multiples for recurring service work.
These shims are used by machinists, millwrights, and mechanical contractors to take up clearance on arbors, spindles, and shaft assemblies. The compact OD and small bore make them well suited for light-duty arbor applications in shop equipment, power tools, and rotating machinery. They are commonly used in maintenance, repair, and overhaul (MRO) settings where precise axial positioning must be maintained without custom fabrication.
Designed as an OEM-style replacement arbor shim for use with rotating equipment, power tools, and machinery requiring 0.5-inch bore shim stock at 0.02-inch thickness.
Arbor shims are installed by machinists or qualified mechanical technicians. Always de-energize and lockout tagout the equipment before accessing the spindle or arbor assembly. Verify shim stack thickness with a micrometer before reassembly to confirm total spacing meets equipment specifications. Do not substitute shims of differing material or thickness without confirming load and tolerance requirements with the equipment manufacturer.
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