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Home | Cost-Efficient Mounting of Large Bearings With Induction Heating
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Cost-Efficient Mounting of Large Bearings With Induction Heating
Medium-frequency technology is ideal for large components, whose heating with conventional methods requires a great organizational effort and considerable costs. Induction heating with the Schaeffler medium frequency induction heater allows a faster heat-up time than other methods as heat can be transferred directly to the workpiece and the process is largely automatic. In addition, the significantly shorter heating time (half the time needed compared to other methods) makes the new method extremely cost-effective. Typical applications include the heating of bearings and machine carriers as well as hard to access areas. Schaeffler is the first and only company that offers a complete package consisting of bearing heating and mounting support. The package gives customers the certainty that the entire bearing replacement procedure – dismounting of the old bearing, heating and mounting of the new bearing – is carried out by experienced fitters. In this way the machines’ reliability is increased and the risk of failure reduced. The induction heater is easy to transport, so the service can be performed in all parts of the world, on bearings of any type and from any manufacturer. The new heating method permits substantial cost savings in many applications. On board the pipe laying vessel Seven Navica in Norway, when Schaeffler mounting experts replaced a starboard bearing, medium frequency induction heating reduced the total replacement time by one day. In this way the operating company Subsea 7 was able to avoid failure and mounting costs in the order of about 120,000 euros. More examples include customers in the wind and steel industries. The new complete package was ordered both by the steelmaker U.S. Steel for the replacement of a converter bearing (spherical roller bearing sized 950 x 1250 x 300 mm) in Slovakia and by a Dutch wind turbine manufacturer for the replacement of a turbine bearing that weighs more than a ton (tapered roller bearing sized 1200 x 1500 x 185.2 mm). In both cases, the new heating method saved 50 percent in time compared to conventional heating methods. Schaeffler Group Industrial The Industrial Division of the Schaeffler Group supplies rolling bearing and plain bearing solutions, and linear and direct drive technology under the INA and FAG brands for around 60 different industrial sectors via its worldwide organization with market proximity and application support service. The range comprises more than 225,000 products from miniature bearings only a few millimeters wide, e.g. for dental drills, to large bearings with an outside diameter of many meters, e.g. for wind turbines. The Schaeffler Group and its 65,000 employees at more than 180 locations worldwide generates group sales of 7.3 billion euros (FY 2009) and ranks amongst the leading rolling bearing manufacturers and suppliers to the automotive industry worldwide.
Contact FAG Industrial Services GmbH Sabine Drescher Marketing & Communication Tel. +49 (0)2407 9149-78 Fax +49 (0)2407 9149-59 E-mail: sabine.drescher@schaeffler.com
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