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Graphite plugged sleeve bushings, also known as copper graphite bearing, is a self-lubricating bearing of special materials. According to different uses and working conditions, different copper graphite bearings are selected. One big category of solid inlaid copper-graphite bearing (JDB) is a kind of novel lubrication bearing with both metal bearing characteristics and oil-free lubrication bearing characteristics, by the metal matrix to bear the load, the special formula of solid lubrication material lubrication. It has high bearing capacity, impact resistance, high temperature resistance, strong self-lubricating ability and other characteristics, especially suitable for heavy load, low speed, reciprocating or swing and other difficult to lubricate and form oil film occasions, also not afraid of water and other acid erosion and erosion.