Rodamientos de rodillos cilíndricos especiales para motores de tracción ferroviaria

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