Bearing unit variants

SKF ConCentra roller bearing units are available in four variants, each optimized to accommodate certain application conditions. Bearing units in the SYNT series are available in all four variants. Bearing units in the FYNT series are only available in the general variant.
With the exception of the relubrication-free variant, SKF ConCentra roller bearing units are filled with a premium lithium grease that contains EP additives. Relubrication-free bearing units are filled with a premium semi-synthetic long-life grease.
For additional information about the sealing solution and grease used in the different variants, refer to the sections Sealing solutions and Lubrication respectively.

General variant

These bearing units are equipped with a double-lip seal on each side. They are suitable for normal to heavy loads (0,05 C < P ≤ 0,15 C1)) in contaminated environments, e.g. textile machines.

High-speed variant

These bearing units are equipped with a labyrinth seal on each side. They are suitable for normal to heavy loads (0,05 C < P ≤ 0,15 C1)) in relatively clean to normal environments, e.g. industrial fans and blowers.
Bearing units in the high-speed variant are identified by the designation suffix TS.

Extreme environment variant

These bearing units are equipped with a heavy-duty radial shaft seal on each side. They are suitable for normal to heavy loads (0,05 C < P ≤ 0,15 C1)) in extremely contaminated environments, e.g. outdoor conveyors.
Bearing units in the extreme environment variant are identified by the designation suffix TF.

Relubrication-free variant

These bearing units are equipped with a double-lip seal on each side. They are suitable for light loads (P ≤ 0,05 C1)) in relatively clean environments, e.g. industrial air handling units.
Bearing units in the relubrication-free variant are identified by the designation suffix W.
  1. 1)The basic dynamic load rating C is provided in the product tables. To calculate the equivalent dynamic bearing load P, refer to Relubrication.
SKF logo