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Introduction

An international manufacturer of technical textile products was experiencing frequent bearing failure on a belt wash application. NSK carried out a Bearing Failure Analysis revealing ingress of water and chemicals leading to the bearing failures. NSK was asked to find a solution to this problem. A trail was agreed which resulted in an increase of bearing life.

Key Facts

  • High volume belt cleaning and inpregnation line
  • Water ingress
  • NSK’s solution: replacing standard ball bearing with NSK’s Molded-Oil ball bearing
  • No bearing failures for more than 12 months
  • Productivity improvement
  • Cost saving generated

Belt washing application Belt washing application
Molded-Oil Bearing Molded-Oil Bearing

Background Information

  • Sector: Textile and Leather
  • Application: Belt washer
  • Number of machines: 2
  • Final product: Belt and textile tubes

  • Country: Germany
  • Problem: Bearing failure due to water ingress
  • Approx. Lifetime: 3 months
  • Re-lubrication : Every 3 months

Value Proposals

  • NSK engineering conducted a Bearing Failure Analysis showing ingress of water and chemicals into the bearing
  • NSK required to replace the standard ball bearings with ball bearings Molded-Oil
  • A trail was agreed which resulted in an increase of bearing life from 3 months to over 12 months

  • The customer benefited from increased productivity and reduced maintenance costs
  • No need for re-lubrication

Product Features

  • Available for high speed applications
  • Available in Ball Bearing, Spherical Roller Bearing and Tapered Roller Bearing types
  • Rust-proof - Stainless steel for corrosive environments
  • Ideal for applications where contact with liquids and chemicals is unavoidable
  • Seals made from nitrile rubber

  • Contact-seal type available in standard inventory for ball bearings
  • Able to minimise oil leakage
  • Longer service life
  • No need for re-lubrication
  • Smooth rotation of rolling elements

Cost Saving Breakdown

Before Cost p.a. NSK Solution Cost p.a.
Re-lubrication € 1.200 No re-lubrication € 0
Cost of maintenance € 7.800 No cost of maintenance € 0
Total Costs € 9.000 € 0

Reference: SS-E-1015

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