Nomenclature / Prefix and sufixes

1. PREFIXES: REFER TO BEARING COMPONENTS.
Examples of prefixes:
K	Cage
L	Removable Ring
R	Detachable bearing
N / NU / NUP / NJ	Types of internal and external rings

2. SUFFIXES: REFER TO INTERNAL AND EXTERNAL BEARING CONSTRUCTION.
Examples of suffixes:

A / B / C / D / E	Different and modified internal construction.

X	Modified dimensions

RS / LS / 2RS / 2LS	Shielding (seal)
N	Groove for retaining ring
NR	With snap ring groove

Z / ZZ	Protective plate
ZN	Protective plate on one side and groove on the other
ZNR	Protective plate and groove on both sides

C1 / C2 / C3 / C4 / C5	Internal clearance in ascending order

MT	Average grease temperature in shielded bearings
LT	Grease for low temperature shielded bearings
HT	Grease for high temperature shielded bearings
LHT	Grease for high and low temperature for shielded bearings