TF Series Bearings 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). 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: • 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. • Cylindrical & taper roller bearings • Spherical roller bearings • Deep-groove ball bearings • Angular contact ball bearings Condition Description • Contamination • High Load • High Temperature • Lubrication • Material Handling • Power Generation • Power Transmission • Quarrying, Mining and Construction • Wind Energy STF Bearing Bore Bearing Type