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Introduction

The rod mill chocks in the plant of a steel manufacturer were fitted incorrectly with the incorrect spacers, causing failures and the need to source high cost urgent replacement bearings. Maintenance staff unaware of the spacer calculation, they work off a Standard Operating Procedure that was 20 years old. Correct fitting instructions presented and demonstrated. NSK engineers were present during replacement and trained the staff on fitting practices. Genuine NSK bearing replaced the current high cost bearings with significant savings at purchase. Customer standard operating procedure with spacer calculations updated and re issued.

Steel Industry - Rod Mill Chocks
  • Steel Industry - Rod Mill Chocks
Angular Contact Ball Bearings - NSKHPS
  • Angular Contact Ball Bearings - NSKHPS

Key Facts

  • Bearings were incorrect assembled and the staff was not trained
  • Old Standard Operating Procedure
  • 5 breakdowns per year
  • Urgent replacements at high costs

Value Proposals

  • NSK Engineer to train staff
  • Correct fitting calculations for spacers supplied by NSK
  • Scheduled replacements at competitive pricing levels

Product Features

  • High load, high speed, high temperature
  • High quality steel
  • Optimised internal design
  • High tech ball guided cages (polymers or machined brass)
  • Reduced heat generation, vibration & noise
  • Easy handling & installation due to universal facing
Cost Saving Breakdown
Before Cost p.a. NSK Solution Cost p.a.
Bearing Costs 8 736 € Bearing Costs 3 494 €
Engineering Costs 655 € Engineering Costs 0 €
Costs of lost production 40 294 € Costs of lost production 0 €
Total Costs 49 685 € 3 494 €

Reference:SS-E-2-585

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