Metric Wring Fit Style Shoulder Bushings

Used in leader-ejector and die set tooling, these plain guide shoulder bushings support accurate alignment between moving and stationary components. Their wring-fit interface is intended to improve rigidity, helping maintain stable positioning during frequent press cycles.

Common scenarios include automotive stamping and connector hardware, where long guide life and consistent motion reduce misalignment-driven wear. The bronze-plated copper alloy body helps resist wear at the guide interface, while the wring-fit design supports predictable movement under load.

They are also suitable for general industrial forming dies that require secure mounting without complex machining. Depending on assembly preferences, choose ground or unground versions to match specific press-fit or bore conditions.

• Die set alignment in leader-bushing stations for smooth travel
• Secure installation compatible with clips/screws and Loctite adhesive methods
• Grease fitting options for Europe or North America lubrication systems

The bushing body is specified as a bronze-plated copper alloy. This combination is selected for sliding-guide duty because the bronze-plated surface supports wear resistance while the copper-alloy substrate helps maintain dimensional stability during repeated motion.

Heat treatment specifics (e.g., quenched & tempered, nitriding, or target HRC hardness) are not provided in the available product data, so hardness values should be confirmed with the supplier documentation for your exact option and supplier lot.

• Wear vs. toughness trade-off: bronze-plated guide surfaces prioritize low wear and smooth sliding, while toughness is governed by the underlying copper alloy.
• Surface finish option: ground versions are intended for tighter mating/fit conditions versus unground versions.

Compared to fully hardened tool steels, bronze-plated copper alloy bushings typically emphasize bearing behavior and wear performance rather than maximum impact toughness.

Selection starts with matching the bushing inner diameter d to the guide/leader shaft size in your die set. For this series, d ranges from 18.011 mm to 80.016 mm, so verify your shaft diameter within that window before selecting a catalog size.

Next, choose the required bushing length L based on the axial engagement length in the die housing. The L range is 50 mm to 98 mm; use the available housing depth and expected guide travel to set the bushing thickness and support area.

• Match d to leader/shaft diameter to ensure proper guide clearance and concentricity
• Match L to available die space and guide support length for stability
• Select Ground vs. Unground based on your bore condition and desired fit repeatability

For lubrication, choose the correct grease fitting standard (Europe or North America) to match your die lube hardware. Since tolerance and interference/press-fit values are not included in the provided data, confirm your target clearance/fit spec during die design.