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 SDAF housings and standard SDAF extended range housings are given below.

Example

SDAF 22634 TA
whereSDAF =
22634 =
TA =

Applicable options

Series
SStandard pillow block
DHeavy-duty series
AInch dimensions
FLabyrinth seal

Material
_
Cast iron (standard)
DDuctile iron (spheroidal graphite cast iron)
SCast steel

Size identification
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 with a
cylindrical bore, diameter series 0
230(00) KAKits with spherical roller bearings on an
adapter sleeve, diameter series 0
231(00)Kits with spherical roller bearings with a
cylindrical bore, diameter series 1
231(00) KAKits with spherical roller bearings on an
adapter sleeve, diameter series 1
232(00)Kits with spherical roller bearings with a
cylindrical bore, diameter series 2
232(00) KAKits with spherical roller bearings on an
adapter sleeve, diameter series 2
..20 to 96Size code, related to the bearing bore size
../500 to /530Size code, related to the bearing bore size

Suffixes1)
TTaconite seal with contact seal or bolt-on taconite seals
TVTaconite seal with V-ring
TA or TVATaconite seal with button head grease fitting
TB or TVBTaconite seal with giant button head grease fitting
YOne end closed (i.e. supplied with end plugs)
/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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