Gibraltar STB-4511 Die Mold Straight Bushing Steel

Product Description

The GIBRALTAR STB-4511 is a straight-style die mold bushing machined from steel for use in tooling, mold, and die applications. It features a 2.5005 inch inside diameter and a 3.2505 inch body diameter, providing the precision fit required for guiding punches, pins, and other tooling components within a mold or die set. The press-fit attachment method locks the bushing securely into the mold plate without additional fasteners. This is a non-self-lubricating design, meaning external or periodic lubrication must be applied as part of routine maintenance. Machinists, toolmakers, and die shop technicians install this type of component during mold builds and tooling repairs.

This bushing is suited for straight-bore applications in die sets, injection molds, stamping dies, and related precision tooling assemblies where controlled alignment and repeatable positioning are required. The steel construction handles the compressive and shear loads typical of production tooling environments. A single bushing is supplied per unit, making it practical for targeted replacement of worn or damaged bushings in an existing mold or die set.

Key Features

• 2.5005 inch inside diameter for precision punch or pin guidance
• 3.2505 inch body diameter for stable press-fit seating in mold plate
• Steel construction for durability under production tooling loads
• Press-fit attachment method eliminates need for secondary fasteners
• Non-self-lubricating design compatible with shop-applied lubrication programs
• Straight bushing style for standard inline alignment applications

Compatibility

Designed as a straight-style die mold bushing for use in precision tooling assemblies requiring a 2.5005 inch bore and 3.2505 inch body diameter press-fit installation.

Installation Notes

Installation is typically performed by toolmakers or die shop technicians using a hydraulic or mechanical press to seat the bushing flush and square within the mold plate bore. Ensure the receiving bore is clean, within tolerance, and free of burrs before pressing. Apply appropriate lubrication to the bushing bore before placing the tooling assembly into service. Inspect the fit after pressing to confirm the bushing is fully seated and shows no rotation or axial movement.