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Introduction

A German vegetable-processing company was experiencing repeated ball bearing failures on one of its transport systems. NSK was commissioned to investigate the problem. During the investigation it was determined that a large amount of water was entering the bearings and washing out the grease fill. Therefore, NSK suggested the use of sealed, corrosion-resistant Molded-Oil Bearings, thus increasing the bearing life from approximately 2 weeks to over 9 months.

Faits marquants

  • Conveyor Belt
  • Processing of vegetables (foodstuffs)
  • Frequent failure of the standard bearings
  • Service life of the standard bearings only 2 weeks
  • Increased service life required
  • NSK solution: Molded-Oil Bearings
  • Result: Bearing lifetime increased from 2 weeks to over 9 months
  • Conveyor Belt
  • Molded-Oil Bearings

Proposition d'optimisation

  • The investigation carried out by NSK revealed that severe water ingress was causing problems (grease being washed out of the bearings)
  • Use of corrosion-resistant Molded-Oil bearings
  • Service life was significantly increased
  • Cost saving realised

Caractéristiques du produit

  • Molded-Oil provides continuous supply of lubrication oil
  • Stainless steel for corrosive environments
  • Grease-free property with no oil refilling keeps operating environments clean
  • Operating life more than twice as long as grease lubrication, in water or dustcontaminated environments
  • Contact-seal type available in standard inventory for ball bearings
  • Achieves extended maintenance-free performance as Molded-Oil provides a continuous supply of lubricant. Available for high speed applications
  • Available in ball bearing, spherical roller bearing and tapered roller bearings types

Analyse des coûts

Avant Coût Annuel Solution NSK Coût Annuel
Costs for Lubrication € 6.377 No Lubrication costs € 0
Costs for mounting and dismounting the bearings € 2.938 No costs for mounting and dismounting of the bearings € 0
Coût Total € 9.315 € 0

Réference:SS-F-1022

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