About DU Type Self Lubricating PAP Bush
DU and DUB Type Dry PAP Bush & Bearings (Oil Free) take advantage of the outstanding dry bearing properties of Polytetrafluoroethylene (PTFE) and combines them with strength, stability and good wear resistance, excellent heat conductivity and low thermal expansion. All our Bushings are sold under our “Dev Engine Spares” Brand
DU Type Bushings consists of three bonded layers:
A steel backing strip and a porous bronze matrix, impregnated and overlaid with the PTFE/ lead bearing material.
- PTFE : 0.01~0.03mm
- Porous bronze : 0.2~0.3 mm
- Steel / Bronze backing : 0.7~2.3 mm
- Tin-plating : 0.005 mm or copper plating : 0.008mm.
DU type PAP Bushing Product Catalogue
Dev Precision Engineers Brochure?
https://www.devprecisionengineers.co.uk/product/about-dx-type-self-lubricating-pap-bush/




