Self-Lubricating Ejector Bushings

Mold component products feature self-lubricating aluminum bronze
bushings ideally suited for running with the MP line of Guide Posts.
These self-lubricating bushings contain graphite plugs which are
impregnated with oil. When the bushings reach 80-90°F as a result
of friction between the bushing and guide post, oil is drawn from the
plug thus lubricating the wear surface. A dark smear pattern is cre
ated on the wear surface as the oil and graphite are imbedded into
the bronze or steel grain. This provides the lubrication necessary for
continuous performance of the tool.