... bronze power dry bearings (with PTFE/Pb, with PTFE without lead, with PTFE/fibre without lead, with PTFE/fibre), aluminum alloy bronze powder with PTFE/fibre dry bearings (without lead ... marginal bearings (with POM, with PVDF, with PEEK/PTFE), metal with PTFE layer dry bearings, metal mesh with PTFE layer bearings, bronze powder with PTFE tape bearings, steel with PTFE fibre fabric ...