... : limit:5m/s bearing bushing,self-lubricating bearing bush1.Series:SF-1,SF-2,FB090,JDB,FZ,JF800,FB09G2.Bushing :DU,DX,Bronze ... forests machines ,etc DX boundary lubrication Bushing(1) Feature: steel as backing, sintered bronze spherical powder as interlayer, and modified POM as ... is middle speed and high impact etc. FB09G ............ bearing bushing(SF-1,SF-2,FB090,JDB,FZ,JF800,FB09G...)