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Introduction

A textile manufacturing company had experienced repetitive failures at approximately 6 months in air circulation motor-fans used on their fabric furnace. During an onsite inspection, NSK found out a relatively high operating temperature in the furnace. Taking this into account, NSK proposed an alternative Deep Groove Ball Bearing type, designed specifically for the use in applications with higher temperatures. A trial was initiated which demonstrated that the bearing life was extended twice compared to standard products. This resulted in a significant reduction in maintenance costs, no unplanned breakdowns and a subsequent improvement in productivity.

 

Key Facts

  • Special textile manufacturing plant
  • Fabric furnace motor-fan
  • Repetitive failures experienced between planned maintenance shut downs
  • Bearing failing due to high operating temperatures
  • NSK Solution: NSK proposed an alternative Deep Groove Ball Bearing for high temperature applications
  • A trial showed that the bearings lasted more than twice than standard units
  • No unplanned failures in a 12 month period
  • Consequently a cost saving was realised due to reduced maintenance and no lost production
  • Textile Manufacturing Deep Groove Ball Bearing with high temperature seal

 

Textile Manufacturing Textile Manufacturing
Deep Groove Ball Bearing with high temperature seal Deep Groove Ball Bearing with high temperature seal

Background Information

  • Sector: Textile Manufacturing
  • Country: UK
  • End-product: Fabrics
  • Application: Furnace motor-fan

  • Number of machines: 1
  • Approx. Lifetime: 6 months
  • Problem: Standard bearings fail prematurely due to excessive ambient heat.

Value Proposals

  • The customer explained they were having repetitive bearing failures in their furnace motor-fan
  • An NSK application revie identified the cause was the high temperatures generated in the furnace
  • The customer mentioned they were using standard Deep Groove Ball Bearings in the motor-fans

  • NSK proposed a trial using high temperature Deep Groove Ball Bearings
  • The trial was successful with no bearing problems in over a year
  • This resulted in a significant cost saving due to reduced maintenance and no lost production

Product Features

  • Bearing steel heat stabilised to +200 °C
  • High temperature Viton seal closures
  • High temperature grease +160 °C

  • Greater than normal clearance to accommodate bearing ring temperature differentials
  • Bearing greased and sealed for life
  • Bearing operating zemperature +180 °C

Cost Saving Breakdown

Before Cost p.a. NSK Solution Cost p.a.
Bearing Cost  € 69 Bearing Cost  € 26
Labour Cost  € 284 Labour Cost  € 0
Lost Production Cost  € 37.800 Lost Production Cost  € 0
Total Costs € 38.153 € 26

Reference: SS-E-2077

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