Value Collection SC08180283 Arbor Spacer 7/8 in Id Alloy Steel

Product Description

The VALUE COLLECTION SC08180283 is a hardened and ground alloy steel arbor spacer designed for precision positioning on milling machine arbors. With a 7/8-inch inner diameter and a 1-3/8-inch outer diameter, this spacer provides accurate cutter or accessory spacing along an arbor shaft. At 7/16 inches thick, it delivers a fixed, rigid standoff distance that holds position under the lateral and radial loads typical of milling operations. Machinists and machine tool technicians install these spacers to set cutter-to-cutter distances or to position tools relative to workpiece features. The hardened and ground finish ensures flat, parallel faces for consistent stack-up accuracy.

This arbor spacer is intended for use with standard milling machine arbors in horizontal and vertical milling setups. It suits both production shop environments and toolroom applications where precise cutter placement is required. The alloy steel construction and hardened finish make it appropriate for repeated use in high-cycle setups without dimensional degradation. Supplied individually, it can be combined with additional spacers of the same or varying thickness to achieve a required cutter spacing dimension.

Key Features

• 7/8-inch inner diameter for standard milling arbor shaft fitment
• 1-3/8-inch outer diameter provides adequate clearance for typical cutter bore sizes
• 7/16-inch thickness for fixed, precise cutter spacing
• Hardened and ground alloy steel for flat, parallel faces and long service life
• Suitable for horizontal and vertical milling machine arbor applications

Compatibility

Designed for use with milling machine arbors requiring a 7/8-inch bore spacer. Refer to your arbor and cutter specifications to confirm dimensional compatibility before installation.

Installation Notes

Arbor spacers are installed by qualified machinists or machine tool technicians during arbor assembly. Power down and lock out the machine spindle before assembling or disassembling any arbor components. Ensure all spacer faces are clean and free of burrs or chips before stacking, as surface contamination will affect cutter alignment and runout. Follow the machine manufacturer's recommended arbor nut torque procedure and applicable shop safety standards.