Designation system

The designations of most SKF rolling bearings follow a system that may consist of a basic designation with or without one or more prefixes and/or suffixes.
Examples and the applicable options for needle roller thrust bearings are given below.
Basic bearing designation system

Examples

Roller and cage thrust assembly / Bearing
AXK 0414 TN
whereAXK0414 TN =
TN =
AXW 40
whereAXW 40 =

Bearing washers
GS 81117
whereGS =
81117 =
AS 3047
whereAS 3047 =

Applicable options for needle roller thrust bearings

Test Designation 1
Prefixes
GS
Housing washer
WS
Shaft washer

Test Designation 2
Basic Designation
811 dimension series indicates the series and size for shaft and housing washers.
AS ..
Thin universal washer, the number following identifies the bore and outside diameter
AXK ..
Needle roller and cage thrust assembly, the number following identifies the bore and outside diameter
AXW ..
Needle roller thrust bearing with a centring flange, the number following identifies the bore diameter
LS ..
Universal washer, the number following identifies the bore and outside diameter

Catalogue image - Test Designation 3
Suffixes - Internal design (n.a.)

Test Designation 4
Suffixes - External design (seals, snap ring groove etc.) (n.a.)

Catalogue image - Test Designation 5
Suffixes - Cage design
TN
Glass fibre reinforced PA66 cage

Catalogue image - Test Designation 6.1
Suffixes - Materials, heat treatment (n.a.)

Test Designation 6.2
Suffixes - Accuracy, clearance, preload, quiet running (n.a.)

Catalogue image - Test Designation 6.3
Suffixes - Bearing sets, matched bearings (n.a.)

Test Designation 6.4
Suffixes - Stabilization (n.a.)


Suffixes - Lubrication (n.a.)

Test Designation 6.6
Suffixes - Other variants (n.a.)
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