May 25, 2020
Evolving tribology - enabler of engineering design
In many industries, complex shapes and surfaces create problems and difficulties for engineers...
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GGB is leading the way in hydropower bearings. We have the extensive experience, expertise and proven product performance to meet the ever-increasing global demands of the hydropower industry. Our high-quality HPF®, HPM, HPMB®, GGB-CBM® and GGB-DB® hydro bearings are specifically designed for use in turbine wicket gates, operating ring axial and radial bearings and valves.
GGB offers many solutions for renewable energy applications, notably in the hydropower industry where we have extensive experience and expertise. We can also provide bearing solutions for other energy applications including wind, solar, oil and gas, offshore, nuclear and tidal energy.
The Son La hydroelectric project in Northwestern Vietnam was supplied with made-to-measure, self-aligning spherical GGB hydro bearings. GGB designed and installed custom-made GGB-DB® spherical bearings in the cam rollers within the heavy roller gates to provide ultra-low friction, maximum wear resistance and complete corrosion resistance. The environmentally friendly bearings are maintenance-free and have an estimated service life of more than 500 years.
At the Changheba hydropower dam in China, our GGB-CBM® self-lubricating, bimetal bearings are used in a number of applications including the wicket gates, linkages, servomotors and operating ring adjustment mechanisms of new Francis water turbines. GGB turbine bearings were selected for the project by one of the largest OEM turbine manufacturers in the world, Harbin Electric Machinery Co. LTD (HEC), thanks to our expert technical support and the high performance properties of our GGB-CBM® bearings, including longer service life, reduced maintenance, improved operation and lower costs.
Vietnam’s Machine & Industrial Equipment (MIE) chose GGB to supply bearings for the An Khe-Ka Nak hydropower project. GGB provided cylindrical GGB-DB® self-lubricating bearings for the project’s radial gates and HPF® axial bearings for the intake service gates. Even in wet, dirty environments and seawater exposure, the bearings offer absolute corrosion resistance, maximum wear resistance and a long service life.
The high load capacity of GGB bearings provides significant savings in new hydroelectric installations. Thanks to their self-lubricating properties, GGB bearings do not require additional lubricants, avoiding the possibility of water contamination.
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GGB’s corrosion-resistant, greaseless HPM, HPMB® and HPF® composite materials are specially designed for use in turbines, gates and valves, combining the self-lubricating properties of PTFE with the high strength and stability of an oriented, glass-fiber-filled epoxy resin backing. Machinable liner of HPMB® composite bushing material offers attainable IT7 inner diameter tolerance with post-installation single point machining. With extensive experience and expertise in the hydropower industry, our HPMB®, HPM and HPF® bearings meet the U.S. Army Corps of Engineers’ requirements for wicket gate applications in turbines per testing conducted by Powertech Labs in British Colombia.
GGB offers a line of high-quality, performance-proven bearings for a variety of applications including:
GGB bearing experts are available to deliver solutions for hydropower and other renewable energy industries. GGB responds to each application’s specific needs with a vast range of standard or custom bearings to offer high load capacities, low friction and wear, long life, reliability, low water absorption for dimensional stability and excellent corrosion resistance.
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The Bearing Bulletin
Brazil’s Belo Monte Hydroelectric Dam is a complex of dams, numerous dykes and a series of canals supplying two different power stations with water.