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

Tractor motor of a railway vehicleTractor motor of a railway vehicle