Mood 3 Products

TF Series Bearings

Composing, CRB-TRB-DGBB, TF-series, 3Comp

NSK’s TF Series Bearings have been designed for outstanding toughness under harsh conditions.  They combine longer service life & superior resistance against wear, seizure & heat, also in contaminated lubrication.

Condition Description

  • Contamination
  • High Load
  • High Temperature
  • Lubrication


  • Material Handling
  • Power Generation
  • Power Transmission
  • Quarrying, Mining & Construction
  • Wind Turbines
  • Cement

Product Features

  • Special material.
  • Innovative heat treatment technology.
  • Outperforming standard bearing steel.
  • TF, NTF, HTF STF, WTF - material to cater to all your environments.
  • TF series materials can be applied to a wide range of bearings:
  • Cylindrical, Tapered & Spherical roller bearings
  • Angular contact & Deep-groove ball bearings


  • Up to 10 times service life with contaminated lubrication.
  • Up to twice the service life under clean lubrication.
  • Up to 4 times the service life at 160°C.
  • Less than one-third the rate of wear.
  • 40% improvement in seizure resistance.
STF 509 kV 6551gS3
Show Description
STF Super-TF
509 Bearing Bore
kV Bearing Type
6551gS3 Basic Number
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