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NSK’s Super-TF (Super-Tough) Roll Neck Bearings are the world’s first high-performance and highly durable roll neck bearing.

Condition Description

  • Contamination
  • High Load
  • High Temperature


  • Steel and Metals

Product Features

  • Steel material technology
  • Special NSK heat-treatment technology
  • Optimal chemical component design technology
  • Available for four-row cylindrical and four-row taper roller bearings


  • Service life 10x's longer than that of conventional bearings operating under conraminated conditions
  • Service life is twice that of conventional bearings operating under clean-lubricant conditions
  • Rate of wear has been reduced to less than one-third that of conventional bearings
  • Seizure resistance has been improved by more than 40%.
  • Superior dimensional stability
  • Improved heat resistance provides a high-temperature service life (maximum 160°C) that is 4x's longer than that of conventional bearings.


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