Traction Motor Bearing Units (TMBU)

Traction motor bearing unit

Available for both locating and non-locating bearing arrangements, the SKF Traction Motor Bearing Unit concept offers new opportunities for space savings, easier mounting, longer maintenance intervals and improved performance.

The TMBU is a sealed and prelubricated bearing unit designed for flange mounting on the housing. A special grease is selected to achieve extended grease life even at high operating temperatures.

The bearing unit is equipped with non-contact labyrinth seals, frictionless and without wear. To increase the reliability, electrical insulation is realized by using either an INSOCOAT coating or hybrid design with ceramic/silicon nitride rolling elements.

The TMBU concept offers space saving opportunities especially in axial direction. Plus, more traction motor power for given motor size can be achieved by using TMBUs.

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