Designation system

The designations of SKF bearing accessories follow a system that consists of a product type, size identification and, where applicable, suffixes.

An example and the applicable options for lock nuts with a locking screw are listed in the following:

Basic bearing designation system
KMFE 5 L
whereKMFE =
5 =
L =

Applicable options for lock nuts with a locking screw

Test Designation 2
Product type
KMFE
Lock nut with a locking screw, with an extended nose

Test Designation 2
Size identification

Listed in the product table

Catalogue image - Test Designation 3
Suffixes
HBigger contact diameter
LSmaller contact diameter
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