GGB DU® Metal-Polymer Composite PTFE Bearings 11 DU

DU® metal-polymer composite self-lubricating plain bearings are designed for dry and lubricated applications in industrial, aerospace, and transportation systems. They support linear, oscillating, and rotating movements with wear and low friction performance across a temperature range of -200°C to 280°C. The bearings operate at a maximum sliding speed of 2.5 m/s dry and 5.0 m/s when oil-lubricated, with maximum pU factors of 1.8 N/mm²·m/s and 5.0 N/mm²·m/s respectively. Coefficient of friction ranges from 0.02 to 0.25 dry and 0.02 to 0.12 when lubricated. Approved to FAR 25.853 and FAR 25.855. Available in cylindrical, flanged, and thrust configurations with standard metric and imperial dimensions. Shaft surface roughness recommended at 0.3-0.5 μm for dry operation and ≤0.40 μm for lubricated conditions. Shaft hardness should exceed 200 HB for improved life.