May 07, 2007
Many of the world's vertical and horizontal hydro turbines run on water lubricated main guide bearings. Wear life for water lubricated main guide bearings is heavily influenced by the type and quantity of abrasives present in the water. Bearing replacement on a 3 to 5-year cycle is common in many applications using conventional water-lubricated main guide bearing materials such as phenolic laminates or rubber. However, recent observations from one leading hydro-power plant operator points to significantly longer wear life and reduced operating costs from an elastomeric polymer bearing, Thordon SXL.
January 02, 2007
Thordon Bearings Inc., a world leader in grease and oil-free bearing solutions has announced the introduction of ThorPlas, a new proprietary engineered (non-elastomer) thermoplastic bearing.
October 19, 2005
Dongfang Electrical Machinery Co., Ltd (part of Dongfang Electric Corp.) and Harbin Electric Machinery Co., Ltd. have recently placed additional orders for Thordon SXL elastomeric polymer segmented turbine shaft seals bringing the total on order or already installed in 2005, to six sets. The shaft seals sold by Proco International Co. Ltd., Thordon's exclusive Distributor in China, are/will be installed at the Kangyang, Sanbanxi, Xiafu, Baishan and Nalan power plants in China and the Tekeze Hydropower Plant in Ethiopia.
January 12, 2005
(Burlington, Ontario) Sleeve bearings in vertical, medium lubricated pumps are a frequent source of problems. Poor shaft support, dry starts, high friction and rapid wear in abrasive services are some of the more common problems encountered. One of the common solutions to some of these problems is the addition of a closed tube around the shaft with either a fresh water flush or oil/grease lubrication. This approach has a high initial cost and a continuing expense in the supply of fresh water or oil/grease and also has the potential for contamination of the medium being pumped. Jacksonville Electric Authority (JEA) of Florida has solved their abrasive wear problem by installing Thordon bearings.