Page 5 of catalogue Bearing Technology for Wind Turbines of Schaeffler Technologies GmbH & Co. KG

The ideal bearing arrangement for any gearbox

Increasing megawatt ratings require larger and higher capacity Gearboxes. The operating conditions for rolling bearings in wind turbine gearboxes cannot be compared with those for static gearboxes. Highly dynamic forces with extreme peak loads and minimal loads, sudden load reversals and widely differing operating temperatures are some of the challenges facing the bearing arrangements. Bearings with high static load safety factor and secure dynamic design according to international design guidelines such as AGMA 6006-A03 are the right solution here.

INA and FAG bearings used: tapered Roller bearings, Cylindrical roller bearings with cage, full complement cylindrical roller bearings, Spherical roller bearings, Deep groove ball bearings and four point contact bearings. New simulation calculations Deformation of the gearbox housing can place additional load on the bearings. Load peaks can also occur as a result of braking and other influences in turbine control. New simulation calculations of the dynamic behaviour of the power train lead to precise load models and

supplement existing models derived from analogies and measurements. Higher operational safety and costefficiency with tapered roller Bearing units Ready-to-fit, optimum designs of tapered roller bearing units for high speed gearbox shafts are be fitted quickly without errors and reduce the logistics effort required. The internal clearance is matched using adjusted intermediate rings. Load distribution and friction can be optimised by the effect of differing contact angles.

Quality has a name: X-life X-life represents premium products from INA and FAG. Products with increased operating life far beyond conventional values. • Improved product characteristics,

lower noise, easier to maintain and high load capacity individual and system solutions, often exceeding the requirements • Improved price/performance ratio • Training programmes for defect-free

fitting and dismantling, plus correct selection and supply of the right lubricant

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