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Collapseable Mini Cores FAQ

What is the difference between DME Bronze-Plated Leader Pin Bushings and DME Self-Lubricating Leader Pin Bushings?

The bronze-plated bushings are bronze-plated over steel. The Self-lubricating bushings are made from a Bronze-Aluminum alloy and have oil-impregnated graphite plugs. Both types differ from regular steel bushings by increasing lubricity. The bronze-plating can wear over time on the bronze-plated bushings, while the Bronze-Aluminum alloy used in the Self-Lubricating bushings does not have the same tensile or compressive strength as steel. As such, a good preventative maintenance program is always recommended when using leader pins and bushings, as components can wear over time. This applies to all bushing types, including bronze-plated guided ejection bushings, self-lubricating guided ejection bushings, and regular steel leader pin bushings.


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Collapsible Mini-Cores FAQ

Can I mold a complete, uninterrupted undercut on the Collapsible Mini-Core?

No. The Collapsible Mini-Core only has three segments that collapse.

Does the Collapsible Mini-Core come with a Grinding Ring?

Yes. Please refer to the DME Collapsible Core Design and Assembly Guide.


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