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Schaeffler has comprehensive testing facilities for creating white etching cracks, analyzing the causes, and developing solution concepts for reducing the risk of white etching cracks.
"Innovative solutions for preventing white etching cracks" video
Cylindrical roller bearings with optimized rib contact (TB design)
Schaeffler developed the TB roller to significantly increase the bearing operating life under axial load.
Cylindrical roller bearings with optimized rib contact
New solid brass cage (MPAX) for cylindrical roller bearings
The MPAX solid brass cage has greater durability with regard to shock loads and vibrations than its predecessors and is especially well suited for applications involving high loads.
MPAX solid brass cage
X-life is the seal of quality for ultra-high performance products of the brands INA and FAG.
X-life products
Brosjyre | 2013-07
Bearing Solutions and Services for Wind Turbine Gearboxes
Find information about Schaeffler products and services for rotor shafts, gearboxes, generators, wind tracking and blade adjustments.
The right bearing support for every 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 industrial gearboxes.
Challenges for the bearing support
Solution
![]() | PLANET CARRIER |
Planet carrier bearings are the largest and therefore most valuable bearings in a wind turbine gearbox. The loads they have to support depend on the main bearing concept selected. These bearings are usually subjected to relatively low loads due to their size.
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![]() | PLANET GEAR |
High loads within a small design envelope
Planet gear bearing supports are extremely challenging bearing positions because of the high radial loads that occur. Only a limited amount of space is available for this bearing support, and the planet gears, which have comparably thin walls, tend to distort leading to unintentional rotation of the bearing outer ring in the planet gear.
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![]() | HOLLOW SHAFTS |
Proven locating/non-locating bearing solutions
Bearing supports for hollow shafts support high radial loads as well as high axial loads in the case of planetary gears with helical gear teeth. Combinations of locating/non-locating bearing arrangements with two tapered roller bearings and one cylindrical roller bearing or two cylindrical roller bearings with one four point contact bearing with radial release have proven themselves in this application.
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![]() | INTERMEDIATE/OUTPUT SHAFT |
High rotational speed
Intermediate shafts are used in single-stage planetary gearboxes in particular. A comparably small amount of space is available for the bearing support for the high radial loads and moderate axial loads that occur here. The output shaft rotates at high speeds.
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![]() | PREFERRED SERIES |
With its preferred series, Schaeffler offers a selection of gearbox bearings that have proven themselves in wind turbine gearboxes.
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