Page 670 - SKF-bearing-housings

Metric roller bearing units SYNT and FYNT series (SKF ConCentra)

Bearing unit variants Relubrication-free variant
These bearing units are equipped with a dou-
SKF ConCentra roller bearing units are avail- ble-lip seal on each side. They are suitable for
1)
able in four variants, each optimized to accom- light loads (P ≤ 0,05 C ) in relatively clean
modate certain application conditions. Bearing environments, e.g. industrial air handling
units in the SYNT series are available in all units.
four variants. Bearing units in the FYNT series Bearing units in the relubrication-free vari-
are only available in the general variant. ant are identified by the designation suffix W.
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 vari-
ants, refer to the sections Sealing solutions
(† page 667) and Lubrication († page 675)
respectively.

General variant
These bearing units are equipped with a dou-
ble-lip seal on each side. They are suitable for
normal to heavy loads (0,05 C < P ≤ 0,15 C ) in
1)
contaminated environments, e.g. textile
machines.
High-speed variant
These bearing units are equipped with a laby-
rinth seal on each side. They are suitable for
1)
normal to heavy loads (0,05 C < P ≤ 0,15 C ) 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
1)
(0,05 C < P ≤ 0,15 C ) in extremely contam-
inated environments, e.g. outdoor conveyors.
Bearing units in the extreme environment
variant are identified by the designation
suffix TF.

1) The basic dynamic load rating C is provided in the product
tables. To calculate the equivalent dynamic bearing load P,
refer to page 678.
666