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SKF Ball Bearings Prefixes and Suffixes

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SKF Ball Bearings Nomenclature

Prefixes

AB Alternator bearings.
AC Air conditioning clutch bearing.
BR Bearings.
B Bearings.
FW Front wheel applications.
GRW Rear wheel bearings with variations in widths.
GWC Generator bearing.
N Bearing inner and outer ring narrower than standard.
RLS Light series, inch type.
RWC Rear wheel bearing, including locking ring.
RWF Rear wheel bearing, including locking ring.
RW Rear wheel with variation of basic design.
R Extra light inch series.
TBT Timing belt tensioner.
W Inner and outer rings wider than standard.
XLS Extra light series.

Suffixes
A Special inner and outer ring corners.
A Double row, Conrad type, open.
ANR Double row, Conrad type, snap ring.
ANRH Double row, Conrad type, snap ring, special features.
AR Special inner and outer ring corners, locking ring for
rear wheel applications.
AZ Double row, Conrad type, one shield.
A2Z Double row, Conrad type, two shields.
B Internal design change or special bearing dimensions.
BEP 40° angular contact, hi cap, polyamide cage.
BR Special dimension, locking ring for rear wheel
applications.
BY Single row angular contact ball bearing.
C Two-piece wiping seal on one side.
CDR Two-piece wiping seal on both sides of bearing,
locking ring included.
CCRA Two-piece wiping seal on both sides of bearing,
locking ring with special dimensions.
CR Locking ring.
E Double row, maximum capacity, open.
ER Locking ring.
ENR Double row, maximum capacity, snap ring.
EZ Double row, maximum capacity, one shield.
E2Z Double row, maximum capacity, two shields.
EZNR Double row, maximum capacity, snap ring, one shield.
FR Locking ring.
GR Locking ring.
H Double row ball bearing, Conrad type.
J Stamped unhardened steel cage.
M Non-significant when used with pillow blocks.
NBRJ Snap ring on opposite side of filling slot.
NJ Snap ring groove on O.D. of bearing, stamped
steel cage, snap ring not included.
NJX Snap ring groove, stamped steel cage, special
dimensions, snap ring not included.
NRJ Snap ring groove, snap ring, stamped steel cage.
NRJ1 Snap ring, stamped steel cage, special O.D. and I.D.
NRJX Snap ring, steel cage, special features.
R Locking ring.
RA Locking ring with special dimensions.
RB Locking ring with special dimensions.
RSJ Sealed one side, steel cage.
2RSJ Sealed both sides, steel cage.
2RSNR Sealed both sides, snap ring.
2RS2 Two Viton seals, C3 clearance, mineral base grease.
2RS2S Two Viton seals, C3 clearance, synthetic grease.
S Shield on opposite side of filling slot.
VAL Modification of original design, sealed both sides.
VAW Special features.
VSP Various special designs.
W Double row, maximum capacity type.
WA Double row, maximum capacity, with special inner and
outer ring corners.
WCC Double row bearing with vertex of contact angles inside
the bearing, maximum capacity. Two-piece wiping seal
on both sides.
WNR Maximum capacity, snap ring.
WNRX Maximum capacity, snap ring, special dimensions.
YYR Single lip molded seal on both sides. Locking ring
supplies with rear wheel types.
ZBJ Shield opposite standard side, steel cage.
ZJ Shield on one side, steel cage.
ZNBRJ Shield on one side, snap ring on same side as shield,
steel cage.
ZNBRJX Shield on one side, snap ring on same side as shield,
steel cage, special dimensions.
ZNJ Shield on one side, snap ring groove opposite shield,
steel cage. Snap ring not included.
ZNRJ Shield on one side, snap ring opposite shield, steel cage.
ZNRJ2 Shield on one side, snap ring opposite shield, special
inner and outer ring corners.
ZNRJX Shield on one side, snap ring opposite shield, special
dimensions.
2ZJ Shields on both sides, steel cage.
2ZJ1 Two-piece wiping seal on both sides of bearing.
Special 5/8" inner dimension.
2ZNRJ Shield on both sides of bearing, snap ring, steel cage.
1J I.D. 1mm larger than standard I.D.

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