Gibraltar BW8658-G Die Mold Sprue Bushing Steel

Product Description

The GIBRALTAR BW8658-G is a die mold sprue bushing designed for use in injection mold tooling applications. This steel bushing features a 0.75-inch shank diameter and a 2-13/32-inch shank length, with a 2-inch head diameter and an overall length of 3-9/32 inches. The head height measures 7/8 inch, with a 7/32-inch hole diameter, 3/16-inch cavity depth, and a 1/2-inch corner radius. It belongs to the Series U product line. Toolmakers, moldmakers, and die maintenance technicians install this component during mold assembly or repair to provide a precision-seated sprue channel entry point for molten material flow.

The BW8658-G is suited for use in injection molding dies and molds requiring a standardized Series U sprue bushing configuration. It is a common fit in production tooling environments across plastics processing and die casting shops. The steel construction makes it appropriate for moderate to high-cycle mold applications where dimensional stability and wear resistance are required at the sprue gate entry.

Key Features

• 0.75-inch shank diameter with 2-13/32-inch shank length for standard Series U fitment
• 2-inch head diameter and 7/8-inch head height for secure seating in the mold plate
• 7/32-inch hole diameter provides the sprue channel bore
• 3/16-inch cavity depth and 1/2-inch corner radius for precise mold interface geometry
• Steel construction for durability in production mold environments
• Overall length of 3-9/32 inches for compatibility with standard mold plate thicknesses

Compatibility

Designed as an OEM-style replacement or standard component for injection mold tooling requiring a Series U die mold sprue bushing with a 0.75-inch shank diameter and 2-inch head diameter.

Installation Notes

Installation is performed by qualified toolmakers or moldmakers during mold build or maintenance with the mold fully depressurized, cooled, and locked out per shop safety procedures. Standard mold fitting and pressing tools are used to seat the bushing accurately in the mold plate bore. Verify hole diameter and shank fit tolerances before pressing to avoid galling or misalignment. Follow applicable shop standards and mold design specifications for sprue bushing installation and retention.