Gibraltar STB-4501 Die Mold Straight Bushing Steel

Product Description

The GIBRALTAR STB-4501 is a straight-style die mold bushing machined from steel for use in tooling, die sets, and mold base assemblies. It features a 0.5005-inch inside diameter and a 0.7505-inch body diameter, providing a close-tolerance bore for guided pin and punch applications. The press-fit attachment method locks the bushing securely into the parent plate without fasteners. This non-self-lubricating design requires periodic external lubrication during service. It is typically installed by toolmakers, moldmakers, and precision machining professionals working on die and mold assemblies.

The STB-4501 is suited for straight bushing positions in die sets, mold bases, and fixture plates where a fixed, non-rotating guide element is required. The part measures 1.38 inches in height and 0.75 inches in width, making it compatible with standard straight bushing pockets in tooling plates. It ships as a single unit and is ordered in single-piece increments, making it practical for both repair and new build applications in job shop and production tooling environments.

Key Features

• Steel construction provides high strength and wear resistance in demanding tooling applications
• 0.5005 inch inside diameter delivers close-tolerance fit for precision guided components
• 0.7505 inch body diameter suits standard straight bushing pocket bores
• Press-fit attachment method eliminates the need for set screws or retention hardware
• Straight bushing style for fixed, non-rotating guide applications
• Non-self-lubricating construction requires external lubrication as part of routine maintenance

Compatibility

Designed as an OEM-style replacement straight bushing for standard die set and mold base tooling plates requiring a press-fit straight bushing with a 0.5005 inch inside diameter.

Installation Notes

Installation is typically performed by a toolmaker or moldmaker using an arbor press or hydraulic press to seat the bushing flush with or below the plate surface. Ensure the receiving bore is clean, free of burrs, and within tolerance before pressing in the bushing. Never hammer the bushing directly without a proper driver to avoid distorting the bore. Apply appropriate lubrication to the bushing bore during assembly and at regular service intervals per your tooling maintenance schedule.