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Traction Motor Bearing Units (TMBU) with sensor capabilities


The sensorised TMBU concept not only helps achieve a lower life-cycle cost as a highly reliable, sealed and greased  bearing units, it also offers several detection and measurement opportunities, including:

  • absolute positioning detection for traction motor control devices
  • detection of direction of rotation
  • speed measurement for brake control systems
  • temperature measurement to monitor reliability

The incremental sensor unit is integrated into the sealing system of the outer ring of the bearing unit. This design is very space-saving, especially in the axial direction compared with conventional sensor devices. SKF TMBUs offer:

  • space saving design, fewer parts
  • high resolution and accuracy
  • robust and long life design
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