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An international car manufacturer was experiencing increasing temperatures of their Spherical Roller Bearings in an exhaust ventilation application. NSK was asked to find a solution in order to reduce temperature generation. NSK Engineering carried out an Application Review including a temperature survey revealing high preload leading to significant temperature rise. NSK Spherical Roller Bearings were suggested along with training of staff on proper installation in order to reduce reoccurance. A bearing trail was conducted, resulting in a considerable temperature reduction.

Key Facts

  • Exhaust Ventilation Application
  • Temperature increase causing early bearing failure
  • NSK’s solution: Using NSK Spherical Roller Bearings along with training. 
  • No temperature rise and therefore no bearing failures in over 12 months
  • Productivity improvement
  • Exhaust Ventilation
Spherical Roller Bearing
  • NSK Spherical Roller Bearing

Value Proposals

  • NSK engineering conducted a Bearing Failure Analysis showing high bearing preload leading to temperature rise
  • NSK suggested using Spherical Roller Bearings and a training of the staff on installation
  • A trail was conducted which increases bearing life from 6 month to over 12
  • The implementation of the NSK bearings was supervised by the NSK engineering team
  • Customer realized increased productivity and reduced maintenance costs
  • No bearing failure for over 12 months

Product Features

  • Highest load rating SRB's
  • High load rating enables downsizing
  • Optimum raceway design & surface finishing
  • Brass cage design (CAM) or strengthened steel cage (EA)
  • Lower maintenance cost and improved productivity
  • Temperature stability: up to 200° C
  • 40 mm to 260 mm bore size
  • Up to twice the operating life
  • Up to 20% higher limiting speed
  • Dynamic load rating: 25% higher

Cost Saving Breakdown

Before Cost p.a. NSK Solution Cost p.a.
Mounting - Dismounting $1,069 No mounting costs $0
Production downtime $14,966 No production downtime $0
Total Costs $16,035 $0