Mood, Industries, 1600x230


Within NSK's own precision plant, a grinding machine was experiencing raceway form errors. After numerous attempts to correct it, the fault remained unidentified. Initial readings were taken using NSK Condition Monitoring Service prior to replacing the bearing with additional readings taken the following weeks. Results showed a number of issues associated with the spindle lubrication. The root cause was identified  which saved time and costs on unnecessary investigative maintenance and machine downtime.

operator grinding mold and die part by universal grining machine
  • Spindle of Grinding Machine
  • Condition Monitoring Service (CMS)

Key Facts

  • Spindle of Grinding Machine
  • Grinding machine experiencing raceway form errors
  • NSK Solution: Condition Monitoring Service (CMS) with analysis on the spindle and dresser
  • Dresser: Gast air motor coupled to a belt drive delivering typical output speed of 8000 rpm
  • Spindle: Electric motor coupled to a belt drive delivering typical output speed of 17341 rpm
  • Root cause of the failures was identified
  • Time and cost saving realized

Value Proposals

  • NSK CMS indicated a lubrication issue with the system leading to raised vibration levels from the rolling elements
  • The machines auto lubrication system was overhauled and the vibration levels reduced significantly
  • The monitoring saved three days of striping the spindle to investigate the potential problem. This also reduced associated loss of production

Product Features

  • Assessment of a machines condition and health while machine is still in operation- saving downtime.
  • Predicted life of the critical components inside a machine allowing the customer to plan maintenance more accurately
  • Preventative maintenance in machinery. Condition Monitoring is the most sensitive and long reaching method of detecting the signs of machine wear
  • On-site support from NSK Engineers
  • Assurance that NSK can assist with the provision of critical bearing and linear motion spares
Cost Saving Breakdown
Before Cost p.a. NSK Solution Cost p.a.
Engineering Costs: Maintenance cost savings $4,320 Engineering Costs
Costs of lost production: Lost production cost savings $7,734 Costs of lost production
Total Costs Before NSK Solution