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A major UK bakery was facing regular bearing failures on their Mecatherm Dough Mixer. Bearings needed to be replaced every 2 to 3 months resulting in high costs of maintenance and loss of production.
NSK reviewed the bearing application and recommended NSKHPS Spherical Roller Bearings. This improved bearing life significantly by 3 to 4 times and therefore reduced unplanned downtime resulting in a large cost saving.

Key Facts

  • 2 Mecatherm Dough Mixers in use
  • Dough Mixer application requires heavy load capacity together with bearings that can also accomodate swashing caused by shaft deflection
  • Original bearings only lasted between 2 & 3 months due to application conditions
  • NSK Solution: NSKHPS (High Performance Standard) Spherical Roller Bearings ideal for heavy loads
  • Bearing life extended by 3 to 4 times
  • Reduced maintenance requirement resulted in a significant cost saving generated
  • Dough Mixer
Spherical Roller Bearing
  • NSKHPS Spherical Roller Bearings

Value Proposals

  • NSK Engineers reviewed bearing application including an analysis of the failed bearings
  • Recommendation of NSKHPS Spherical Roller Bearings
  • A trial of NSKHPS bearings resulted in life improvements 3 to 4 times that of before

Product Features

  • Highest load rating SRB's
  • Optimum raceway design & surface finishing
  • Brass cage design (CAM) or strengthened steel cage (EA)
  • High cleanliness Z-steel
  • 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
  • Lower maintenance cost and improved productivity
  • High load rating enables downsizing

Cost Saving Breakdown

Before Cost p.a. NSK Solution Cost p.a.
Lost production: 12hrs x 600 €/hr x 8/year €57.600 Lost production: 12hrs x 600 €/hr x 2/year €14.400
Labour cost: 22  €/hr x 24hrs x 8/year €4.224 Labour cost: 22 € x 24 hrs x 4/year €2.112
Bearings costs €864 Bearings costs €432
Engineering support €2.243 Engineering support €0
Total Costs € 64 931 € 16 944