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Special cylindrical roller bearing for railway traction motors (UK)

Application:

  • Traction motor for railway vehicles

Problem:

  • Frequent bearing failures on the non-locating side due to overheating

Assignment:

  • Technical root cause analysis
  • Improving bearing performance
  • Increasing operational safety

NKE Solution: 

  • Elimination of glass fibre insulation → better heat dissipation
  • Re-Definition of sideplay of the labyrinth sealing system
  • Raising radial clearance to C4H
  • Introduction of electrically insulated bearings
  • No change of adjacent parts required due to customized bearing dimensions

Results:

  • No bearing failures since conversion to NKE special bearings

[ More information about NKE bearings for railway applications ]

NKE special cylindrical bearing with special radial clearance and electrical insulation
NKE special cylindrical bearing with special radial clearance and electrical insulation
Tractor motor of a railway vehicle
Tractor motor of a railway vehicle