Value Collection SC08200081 Arbor Bushing Alloy Steel

Product Description

The VALUE COLLECTION SC08200081 is an alloy steel machine tool arbor bushing designed to adapt arbor bores on milling machine setups. It features a 1-1/4 inch hole diameter, a 2-1/8 inch outside diameter, and a 3-3/4 inch overall length. The bushing holds a total indicated runout (TIR) of 0.0004 inch, making it suitable for precision milling operations where concentricity matters. Weighing 2.5 pounds, it is built from alloy steel for strength and wear resistance. Machinists and tool room technicians install this type of bushing when fitting arbors to spindles or adapting tooling to the correct bore size.

This arbor bushing is intended for use with milling machine arbors in shop and production environments. It is well suited for horizontal and vertical milling setups where the bore diameter of existing tooling or the machine spindle must be matched to the arbor shank diameter. The alloy steel construction handles the torsional and radial loads typical of milling operations, and the tight runout tolerance supports consistent cutter performance across a range of materials and cut depths.

Key Features

• 1-1/4 inch bore diameter for arbor fitment
• 2-1/8 inch outside diameter for sleeve or spindle seating
• 3-3/4 inch length provides extended contact and support along the arbor
• 0.0004 inch TIR for precision concentricity in milling applications
• Alloy steel construction for strength, hardness, and durability under load

Compatibility

Designed for use with milling machine arbors. Verify bore diameter, outside diameter, and length against your machine spindle and arbor specifications before installation.

Installation Notes

Installation is typically performed by a machinist or tool room technician. Before fitting the bushing, ensure the milling machine is fully powered down and all spindle rotation has stopped. Clean the arbor and bushing bore of chips, burrs, and debris before pressing or sliding the bushing into place. Check runout with a dial indicator after installation to confirm concentricity is within acceptable limits for the operation.