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Designations

The designations of SKF housings and associated components follow a system that consists of a basic designation with or without one or more prefixes and/or suffixes.
Examples and the applicable options for SAF and SAW housings are given below.

SAF 22634 TAwhereSAF =
22634 =
TA =

Applicable options

Prefix for bolt holes
FFour-bolt base (SAF housings)

Series
SStandard pillow block housing
AInch dimensions
F
Labyrinth seal
W
Wide bearing seat
B
Pillow block with sealed bearing

Material
Cast iron (standard)
DDuctile iron
SCast steel


Size identification
13(00)Kits with self-aligning ball bearings with a cylindrical bore,
diameter series 3
15(00)Kits with self-aligning ball bearings on an adapter sleeve,
diameter series 2
16(00)Kits with self-aligning ball bearings on an adapter seleve,
diameter series 3
222(00)Kits with spherical roller bearings with a cylindrical bore,
diameter series 2
223(00)Kits with spherical roller bearings with a cylindrical bore,
diameter series 3
225(00)Kits with spherical roller bearings on an adapter sleeve,
diameter series 2
226(00)Kits with spherical roller bearings on an adapter sleeve,
diameter series 3
230(00)Kits with spherical roller bearings on an adapter sleeve,
diameter series 0
232(00)Kits with spherical roller bearings with a cylindrical bore,
diameter series 2
235(00)Kits with spherical roller bearings on an adapter sleeve,
diameter series 2
C22(00)Kits with CARB toroidal roller bearings with a
cylindrical bore, diameter series 2
C23(00)Kits with CARB toroidal roller bearings with a
cylindrical bore, diameter series 3
C25(00)Kits with CARB toroidal roller bearings on an
adapter sleeve, diameter series 2
C26(00)Kits with CARB toroidal roller bearings on an
adapter sleeve, diameter series 3
C30(00)KA Kits with CARB toroidal roller bearings on an
adapter sleeve, diameter series 0
..(00)

Size code of the bearing, (00) x 5 = bearing bore diameter [mm]


Suffixes1)
TTaconite seal with contact element
TVTaconite seal with V-ring
TA or TVATaconite seal with button head grease fitting
TB or TVBTacontie seal with giant button head grease fitting
TLCPosiTrac Plus seal
YOne end close (i.e. supplied with end plug)
-11Four-bolt base (case steel SAFS only)
/VZ...Special feature / modification
  1. 1)When multiple suffixes are used, they are listed in the same order as shown here.
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