Advanced Bearings

DuraBlue Stern Tube Bearings

DuraBlue stern tube bearings are made from a synthetic reinforced composite with built-in solid lubricants for low friction and long wear life in blue-water service.

  • ABS type approved for L/d ratios as low as 2:1.

  • Dimensionally stable, with seawater absorption of 0.09% or less.

  • Easy to machine and install by press fit or freeze fit.

DuraBlue Stern Tube Bearings
PropertyValue
Compressive Strength (ASTM D695)> 207 MPa (> 35,000 psi)
Shear Strength (ASTM D2344)> 13.8 MPa (> 2,000 psi)
Coefficient of Friction0.001 (hydrodynamic)
Water Absorption≤ 0.09%
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