drag material delrin 500af with impregnated teflon space-age polymer that is ... engagement spool rotation mechanism oilimpregnatedbronze bushings rotating on ... engagement spool rotation mechanism oilimpregnatedbronze bushings rotating on ... drag material delrin 500af with impregnated teflon space-age polymer that is ... four sizes have also been equipped with oil-impregnated bushings for spool rotation the frame ... engagement spool rotation mechanism oilimpregnatedbronze bushings rotating on ... drag material delrin 500af with impregnated teflon space-age polymer that is ... rotating on a stainless steel spindle oilimpregnatedbronze bushings rotating on ... drag material delrin 500af with impregnated teflon space-age polymer that is ...