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FAG bearing part number system

How to read FAG part numbers:

EXAMPLE: 6203.2RS.T5.C3.L19

6203 = basic bearing series and size designation.
.2RS = two molded rubber seals.
.T5 = ABEC-5 tolerance class.
-C3 = AFBMA internal radial clearance.
.L19 = Mobil 28 grease, MIL-G-81322.

EXAMPLE: NU205.M.T5.S1

NU = cylindrical roller bearing, single-row, two lipped outer ring, cylindrical inner ring.
205 = basic bearing series and size designation.
.M = machined brass retainer, roller guided.
.T5 = RBEC-5 tolerance class.
.S1 = stabilized for operating temperatures up to 390F.

s

Part number system

PrefixSuffixDefinition
.(DB)BALL BEARING SUITABLE FOR DUPLEX MOUNTING "BACK-TO-BACK".
.(DF)BALL BEARING SUITABLE FOR DUPLEX MOUNTING "FACE-TO-FACE".
.(DR)CYLINDRICAL ROLLER BEARING DROP ROLLER RETAINER DESIGN.
.(DT)BALL BEARING SUITABLE FOR DUPLEX MOUNTING IN TANDEM.
.(RY)TRACTION MOTOR BEARING SPECIFICATION.
.(S...)(FOILED BY 3 DIGITS OR ONE LETTER AND TWO DIGITS) SPECIAL SPECIFICATION COVERING SELECTED AND/OR OTHER CHARACTERISTICS.
.(X)BEARING WITH INCREASED SEAL TORQUE.
.(Y)BEARING WITH REDUCED SEAL TORQUE
.22TWO METAL SHIELDS.
.2HSTWO SEALS, POLYACRYLIC MATERIAL.
.2RSTWO SEALS, BUNA-N RUBBER.
.2RSRTWO SEAL, BUNA-N RUBBER, RADIAL TYPE.
.2TSTWO SEALS, FIBER GLASS FILLED TEFLON MATERIAL.
.2VSTWO SEALS, VITON MATERIAL.
.2ZRTWO METAL SHIELDS, RADIAL TYPE.
.ABALL BEARING, SINGLE-ROW, ANGULAR CONTACT 30 DEGREES.
.AINTERNAL DESIGN MODIFICATION.
.BBALL BEARING, SINGLE-ROW, ANGULAR CONTACT 40 DEGREES.
.BINTERNAL DESIGN MODIFICATION.
.CBALL BEARING, SINGLE-ROW ANGULAR CONTACT 15 DEGREES.
.CINTERNAL DESIGN MODIFICATION.
.C2INTERNAL RADIAL CLEARANCE DESIGNATIONS CONFORMING TO AFBMA STANDARDS, SECTION NO. 3.
.C3INTERNAL RADIAL CLEARANCE DESIGNATIONS CONFORMING TO AFBMA STANDARDS, SECTION NO. 3.
.C4INTERNAL RADIAL CLEARANCE DESIGNATIONS CONFORMING TO AFBMA STANDARDS, SECTION NO. 3.
.C5INTERNAL RADIAL CLEARANCE DESIGNATIONS CONFORMING TO AFBMA STANDARDS, SECTION NO. 3.
.CLINTERNAL RADIAL CLEARANCE DESIGNATIONS CONFORMING TO AFBMA STANDARDS, SECTION NO. 3.
.DABALL BEARING, DOUBLE-ROW WITH SPLIT INNER RING. N
.EBALL BEARING, SINGLE-ROW, ANGULAR CONTACT 25 DEGREES.
.EBALL OR ROLLER BEARING WITH INCREASED LOAD CAPACITY DESIGN.
.FMACHINED STEEL RETAINER, ROLLING ELEMENT GUIDED.
.F3NOISE TEST SPECIFICATION.
.F96AIRCRAFT INSPECTION.
.FAMACHINE STEEL RETAINER, OUTER RING GUIDED.
.FBMACHINED STEEL RETAINER, INNER RING GUIDED.
.GNOISE TEST SPECIFICATION.
.HMACHINED FORGED BRONZE RETAINER, ROLLING ELEMENT GUIDED.
.HAMACHINED FORGED BRONZE RETAINER, OUTER RING GUIDED.
.HBMACHINED FORGED BRONZE RETAINER, INNER RING GUIDED.
.HLSPHERICAL ROLLER BEARING WITH INCREASED LOAD CAPACITY.
.HSONE SEAL, POLYACRYLIC MATERIAL.
.JSTAMPED METAL RETAINER, ROLLING ELEMENT GUIDED.
.KBEARING WITH TAPERED BORE, TAPER 1:12.
.K30BEARING WITH TAPERED BORE, TAPER 1:30.
.LMACHINED ALUMINUM RETAINER, ROLLING ELEMENT GUIDED.
.L10SHELL ALVANIA NO. 2 GREASE, MIL-G-18709.
.L12CHEVRON SRI NO. 2 GREASE, MIL-G-3545.
.L14SHELL AEROSHELL 16 GREASE, MIL-G-25760.
.L15SHELL AEROSHELL 7 GREASE, MIL-G-23827.
.L16AMERICAN SUPERMIL ASU 31052, MIL-G-25013.
.L19MOBIL OIL, MOBIL 28 GREASE, MIL-G-81322.
.L904DIESTER INSTRUMENT OIL, MIL-L-6085.
.L907DIESTER INSTRUMENT OIL, MIL-L-6085.
.L909PETROLEUM OIL, MIL-L-7870A.
.L910PETROLEUM OIL, MIL-L-644A.
.L914PETROLEUM OIL, MIL-L-3503.
.L923SILICONE FLUID.
.LAMACHINED ALUMINUM RETAINER, OUTER RING GUIDED.
.LBMACHINED ALUMINUM RETAINER, INNER RING GUIDED.
.MMACHINED BRASS RETAINER, ROLLING ELEMENT GUIDED.
.MAMACHINED BRASS RETAINER, OUTER RING GUIDED.
.MBMACHINED BRASS RETAINER, INNER RING GUIDED.
.MPMACHINED BRASS RETAINER, WINDOW TYPE.
.NCIRCUMFERENTIAL GROOVE ON BEARING O.D. FOR SNAP RING.
.NRCIRCUMFERENTIAL GROOVE ON BEARING O.D. AND SNAP RING.
.P4ISO TOLERANCE CLASSIFICATION.
.P5ISO TOLERANCE CLASSIFICATION.
.P6ISO TOLERANCE CLASSIFICATION.
.RSONE SEAL, BUNA-N RUBBER.
.RSRONE SEAL, BUNA-N RUBBER, RADIAL TYPE.
.SSPHERICAL ROLLER BEARING WITH CIRCUMFERENTIAL LUBRICATING GROOVE'IN O.D. AND HOLES IN O.R.
.S2STABILIZED FOR OPERATING TEMPERATURES UP TO 480F.
.S3STABILIZED FOR OPERATING TEMPERATURES UP TO 570F.
.S4STABILIZED FOR OPERATING TEMPERATURES UP TO 660F.
.SGNOISE TESTED SPECIFICATION.
.SISTABILIZED FOR OPERATING TEMPERATURES UP TO 390F.
.SOSTABILIZED FOR OPERATING TEMPERATURES UP TO 300F.
.SOOSTABILIZED FOR OPERATING TEMPERATURES UP TO 250F.
.SPSUPER PRECISION SPECIFICATION.
.TTEXTILE LAMINATED PHENOLIC RETAINER, ROLLING ELEMENT GUIDED.
.T3ABEC-3 AND KBEC-3 TOLERANCES.
.T5ABEC-5 AND RBEC-5 TOLERANCES.
.T7ABEC-7 AND RBEC-7 TOLERANCES.
.T9ABEC-9 AND RBEC-9 TOLERANCES.
.TATEXTILE LAMINATED PHENOLIC RETAINER, OUTER RING GUIDED.
.THTEXTILE LAMINATED PHENOLIC RETAINER, SNAP TYPE.
.TNPLASTIC RETAINER, ROLLING ELEMENT GUIDED.
.TNHPLASTIC RETAINER, SNAP TYPE.
.TRTEXTILE LAMINATED PHENOLIC RETAINER, INNER RING GUIDED.
.TSONE SEAL, FIBER GLASS FILLED TEFLON MATERIAL.
.ULUNIVERSAL MOUNTING AND PRELOAD.
.UMSPECIFICATIONS FOR ANGULAR CONTACT.
.UOBALL BEARINGS.
.VFULL COMPLEMENT, RETAINERLESS BEARING.
.VSONE SEAL, VITON MATERIAL.
.YPRESSED BRASS RETAINER, ROLLING ELEMENT GUIDED.
.YPPRESSED BRASS RETAINER; WINDOW TYPE.
.ZONE METAL SHIELD.
.ZRONE METAL SHIELD, RADIAL TYPE.
A.BALL BEARING, SINGLE-ROW, ANGULAR CONTACT TYPE WITH ONE RELIEVED INNER RING SHOULDER AND AN OUTER RING GUIDED RETAINER.
B.BALL BEARING, SINGLE-ROW, ANGULAR CONTACT TYPE WITH ONE RELIEVED OUTER RING SHOULDER AND AN INNER RING GUIDED RETAINER.
BO.MAGNETO TYPE BALL BEARING.
DL.BALL THRUST BEARING, SINGLE-ROW, SINGLE DIRECTION, GROOVED RACE SURFACE, METRIC LIGHT SERIES.
DM.BALL THRUST BEARING, SINGLE-ROW, SINGLE DIRECTION, GROOVED RACE SURFACE, METRIC MEDIUM SERIES.
E.MAGNETO TYPE BALL BEARING.
EW.BALL THRUST BEARING, SINGLE-ROW, SINGLE DIRECTION, GROOVED RACE SURFACE. EXTRA LIGHT INCH SERIES.
HW.BALL THRUST BEARING, SINGLE-ROW, SINGLE DIRECTION, GROOVED RACE SURFACE. HEAVY INCH SERIES.
K.AIRCRAFT CONTROL BALL BEARING, SINGLE-ROW, RADIAL.
KP.AIRCRAFT CONTROL BALL BEARING, SINGLE-ROW, RADIAL.
KS.AIRCRAFT CONTROL BALL BEARING, SINGLE-ROW, SELF-ALIGNING.
KSP.AIRCRAFT CONTROL BALL BEARING, SINGLE-ROW, SELF-ALIGNING.
L.MAGNETO TYPE BALL BEARING.
LS.BALL BEARING, SINGLE-ROW, LIGHT INCH SERIES.
M.MAGNETO TYPE BALL BEARING.
MS.BALL BEARING, SINGLE-ROW, MEDIUM INCH SERIES.
MW.BALL THRUST BEARING, SINGLE-ROW, SINGLE DIRECTION, GROOVED RACE SURFACE. MEDIUM INCH SERIES.
N.CYLINDRICAL ROLLER BEARING, SINGLE-ROW, TWO LIP INNER RING, CYLINDRICAL OUTER RING.
NJ.CYLINDRICAL ROLLER BEARING, SINGLE-ROW, TWO LIP OUTER RING, ONE LIP INNER RING.
NN.CYLINDRICAL ROLLER BEARING, DOUBLE-ROW, THREE LIP INNER RING, CYLINDRICAL OUTER RING, SPINDLE BEARING.
NNU.CYLINDRICAL ROLLER BEARING, DOUBLE-ROW, THREE LIP INNER RING, CYLINDRICAL INNER RING, SPINDLE BEARING.
NO.CYLINDRICAL ROLLER BEARING, SINGLE-ROW, TWO LIP OUTER RING, CYLINDRICAL INNER RING.
NUP.CYLINDRICAL ROLLER BEARING, SINGLE-ROW, TWO LIP OUTER RING, TWO LIP INNER RING WITH ONE LIP SEPARABLE.
QJ.BALL BEARING, SINGLE-ROW, FOUR-POINT DESIGN WITH SPLIT INNER RING.
R.BALL BEARING, SINGLE-ROW, EXTRA SMALL AND EXTRA LIGHT INCH SERIES.
RLS.CYLINDRICAL ROLLER BEARING, SINGLE-ROW, TWO LIP INNER RING, CYLINDRICAL OUTER RING, LIGHT INCH SERIES.
RMS.CYLINDRICAL ROLLER BEARING, SINGLE-ROW, TWO LIP INNER RING, CYLINDRICAL OUTER RING, MEDIUM INCH SERIES.
RY.TRACTION MOTOR BEARING SPECIFICATION.
S.BALL BEARING, SINGLE-ROW, EXTRA WIDE SERIES.
W.BALL THRUST BEARING, SINGLE-ROW. SINGLE DIRECTION, GROOVED RACE SURFACE. LIGHT INCH SERIES.
X.SPECIAL BEARINGS .
XA.SPECIAL BEARINGS .
XB.SPECIAL BEARINGS .
XF.SPECIAL BEARINGS .
XH.SPECIAL BEARINGS .
XJ.SPECIAL BEARINGS .
XK.SPECIAL BEARINGS .
XLS.BALL BEARING, SINGLE-ROW, EXTRA LIGHT SERIES.
XW.BALL THRUST BEARING, SINGLE-ROW. SINGLE DIRECTION, GROOVED RACE SURFACE. EXTRA LIGHT INCH SERIES.
A.MAGNETO TYPE BALL BEARING.

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