... : limit:5m/s self lubricating bearing:1.Series: SF-1, SF-2, FB090, JDB, FZ, JF800, FB09G2.Bushing :DU,DX,Bronze Bushing, Cast-Iron Embedded ... load capacity:140/mm24.Max speed: limit:5m/s1. DU Self-Lubricating bushing (1) Feature: a steel backing, a sintered porous bronze ... for where is middle speed and high impact etc. FB09G ............ self lubricating bearing(SF-1,SF-2,FB090,JDB,FZ,JF800,FB09G...)