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KONTAKT

Einleitung

An international car manufacturer experienced increasing temperatures of their Spherical Roller Bearings in an exhaust ventilation application. NSK was asked to find a solution to this problem in order to reduce temperature generation. NSK Engineering carried out an Application Review including a temperature survey revealing high preload leading to significant temperature increase. NSK suggested using NSK Spherical Roller Bearings. In addition NSK recommended a Training “Application of NSK Bearings”. A trail was conducted, resulting in a considerable temperature reduction.

Fakten

  • Exhaust Ventilation Application
  • Temperature increase leading to early bearing failure
  • NSK’s solution: Using NSK Spherical Roller Bearings.NSK Training “Application of NSK Bearings”
  • No temperature increase and therefore no bearing failures for more than 12 months
  • Productivity improvement
  • Cost saving generated
  • Hallenabsaugung in Lüftungsanlage
Spherical Roller Bearings - CAM Cage
  • NSK Pendelrollenlager

Optimierungsvorschläge

  • NSK engineering conducted a Bearing Failure Analysis showing high bearing preload leading to temperature rise
  • A trail was agreed which resulted in an increase of bearing life from 6 month to over 12 months
  • The implementation of the NSK recommendations has been supervised by the NSK engineering team
  • The customer benefited from increased productivity and reduced maintenance costs
  • No bearing failure for over 12 months
  • Cost saving was realised

Produkteigenschaften

  • Highest load rating SRB's
  • High load rating enables downsizing
  • Optimum raceway design & surface finishing
  • Brass cage design (CAM) or strengthened steel cage (EA)
  • Lower maintenance cost and improved productivity
  • Temperature stability: up to 200° C
  • 40 mm to 260 mm bore size
  • Up to twice the operating life
  • Up to 20% higher limiting speed
  • Dynamic load rating: 25% higher

Analyse der Kosteneinsparungen

Vorher Kosten p.a. NSK Lösung Kosten p.a.
Montage - Demontage € 1.000 Keine Montagekosten € 0
Produktionsausfall € 14.000 Kein Produktionsausfall (1 Jahr) € 0
Gesamtkosten € 15.000 € 0

Referenz Nr:SS-D-1017

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