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Taurus locomotive (picture: ÖBB)

Hybrid Bearings for an Oil Pump in a Locomotive



  • Oil pump for transformer oil cooler in the Taurus locomotive


  • Initial solution with standard bearings did not offer sufficient life time
  • NKE engineering established electrical corrosion as the root cause for failures

NKE Solution:

  • Bearings with ceramic balls preventing the passage of electric current – 3306-B-TV-C3-SQ77B and 6305-C3-SQ77B

To application report