This range of bearings is designed to operate under conditions of no, or only marginal lubrication. They are available in metric and imperial versions and usually in plain, flanged and washer versions.
Self lubricated bearings with a carbon steel shell and a sintered bronze layer filled with PTFE.
Oil or grease lubricated bearings with a carbon steel shell and sintered bronze layer containing a co-acetyl polymer layer.
Oil impregnated sintered bronze bearings are available from stock in many variations including plain, flanged and spherical bearings, washers, and plain and cored bars.