Solid Lubricating Bearing (500# JDB) Bronze Bushing Solid Lubricating Bearing, Material: CuZn25Al6FeMn3 + Graphite Description: Material: CuZn25Al6FeMn3 + Graphite Hardness: >190HB Self-lubricating & Maintenance-free Features: High load capacity, very good wear and abrasion resistance, moderate corrosion resistance, hardened mating material favorable. Special suitable for toggle mechanism bushing in injection molding machines. Possible Applications: