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.
  • Optimum chemical component design technology.
  • Available for four-row cylindrical and four-row taper roller bearings.


  • Service life is 10 times longer than that of conventional bearings operating under conditions of exposure to foreign matter or contaminants.
  • 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 4 times longer than that of conventional bearings.

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