Walker Pug Mill - Equipment Use and Repair - Ceramic Arts Daily …
I'm not sure what size your pug mill needs, but I'm assuming the spider bushing of the walker pug mill is similar to a bluebird. There are about 3 types and maybe 4 sizes. The three types are open, solid, and "L". Mine are the solid type, so to find out what yours needs do a Bing search for " solid elastomeric spider".