Superior bearings developed specifically for hydropower applications.

HPM™ and HPF™

These composite materials provide high load capacities, low friction and wear, long life, low water absorption for dimensional stability and excellent corrosion resistance. Used primarily in turbines, these bearings combine the self-lubricating properties of PTFE with the high strength and stability of an oriented, glass-fiber-filled epoxy resin backing.

Both HPF and HPM bearings meet hydropower industry standards for turbine wicket gate applications per independent tests conducted by Powertech Labs.

DB™

DB™ cylindrical, axial and self-aligning spherical bearings provide excellent, maintenance-free performance under high loads and intermittent operation. They are used primarily in gates, where they are subjected to high specific loads and long dwell periods, and where it is not practical to use lubricants. Featuring cast bronze alloy construction with graphite-free solid lubricant inserts, the bearings provide a lower wear rate and longer service life than those lubricated with graphite.

In addition, GGB's DU®B dry bearing material provides good wear and friction performance over a wide range of load, speed and temperature conditions. Bonded to the bearings' corrosion-resistant bronze backing are a porous bronze sinter interlayer impregnated and overlaid with a PTFE-based sliding layer.