| Prefix |
Suffix |
Definition |
| . |
A |
SPECIAL INTERNAL DESIGN OR MANUFACTURING CODE. |
| . |
A50 |
SHIELDED OR SEALED BALL BEARING WITH PRESSED STEEL CAGE. |
| . |
B |
40 DEGREE CONTACT ANGLE FOR ANGULAR CONTACT BALL BEARINGS (7200, 7300) AND 20 DEGREE FOR TAPERED ROLLER BEARINGS. DOUBLE ROW ANGULAR CONTACT BALL BEARING WITH FILLING SLOTS. |
| . |
B22 |
INTERNAL DESIGN FEATURE OF TAPERED ROLLER BEARINGS. |
| . |
B33 |
LUBRICATION GROOVE AND HOLES IN OUTER RING OF SPHERICAL ROLLER BEARINGS (=W33) |
| . |
BG |
UNIVERSAL PAIRING FOR ANGULAR CONTACT BALL BEARINGS (40 DEGREE CONTACT ANGLE). |
| . |
C |
INTERNAL DESIGN MODIFICATION FOR TAPERED ROLLER BEARINGS. 15 DEGREE ANGULAR CONTACT BALL BEARING. |
| . |
C12 |
INTERNAL DESIGN MODIFICATION FOR TAPERED ROLLER BEARINGS. |
| . |
D.. |
SPECIAL GREASE. |
| . |
DB |
BACK TO BACK PAIRING ("0" CONFIGURATION) |
| . |
DT |
TANDEM PAIRING. |
| . |
E |
INCREASED CAPACITY FOR CYLINDRICAL AND SPHERICAL ROLLER BEARINGS. |
| . |
E OR EE |
STANDARD SINGLE OR DOUBLE SEALS FOR BALL BEARINGS. |
| . |
E10 |
FRONT LIP SEAL FOR BALL BEARINGS. |
| . |
E16 |
FRONT LIP SEAL FOR TAPERED ROLLER BEARINGS. |
| . |
E22 |
SPECIAL RADIAL LIP SEAL. |
| . |
E3, E33 |
SINGLE OR DOUBLE SEALS FOR HIGH TEMPERATURE BALL BEARINGS. |
| . |
E30, E32 |
SPECIAL REINFORCED FRONT LIP SEAL. |
| . |
EX50 |
E10 SEAL PLUS E SEAL. |
| . |
F.. |
CODE COMBINING SEVERAL SPECIAL FEATURES. |
| . |
F107 |
MB - B33 - J30 (MB - W33 - C3) |
| . |
F245 |
MB - B33 - J40 (MB - W33 - C4) |
| . |
F600 |
SPECIAL BEARING FOR KILN CAR. |
| . |
F700 |
SPECIAL SHIELDED BALL BEARING FOR HIGH SPEED. |
| . |
F800 |
SPECIAL BEARING FOR VIBRATING MACHINES. |
| . |
FT150 |
SEALED SINGLE ROW RADIAL BALL BEARING, FOR TEMPERATURES UP TO 150 C DEGREES (300 DEGREES F). |
| . |
G.. |
SPECIAL CAGE. |
| . |
G13 |
ONE PIECE STEEL CAGE FOR CYLINDRICAL ROLLER BEARINGS. |
| . |
G14 |
POLYAMIDE CAGE |
| . |
G15 |
GLASS FIBRE REINFORCED PLOYAMIDE CAGE. |
| . |
G28 |
PRESSED STEEL CAGE FOR CYLIDICAL ROLLER BEARINGS. |
| . |
H |
25 DEGREE CONTACT BALL BEARINGS. |
| . |
J |
RADIAL INTERNAL CLEARANCE AND MANUFACTURING PRECISION. THE FIRST DIGIT DENOTES THE ISO RADIAL INTERNAL CLEARANCE CTAGORY.THESECOND DIGIT DENOTES THE ISO PRECISION CLASS, E.G. : J36: RADIAL INTERNAL CLEARANCE CATAGORY 3, ISO PRECISION CLASS 6 (ABEC 3). EQUIVALENTS: J20 = C2, J30 = C3, J40 = C4 AND J50 = C5. |
| . |
JX0 |
SPECIAL RADIAL INTERNAL CLEARANCE. |
| . |
K |
1/12 TAPERED BORE. |
| . |
K30 |
1/30 TAPERED BORE. |
| . |
LLS |
SPECIAL LABYRINTH SHIELDS FOR SPHERICAL OUTSIDE DIAMETER BEARINGS. |
| . |
M |
MACHINED BRASS CAGE, CENTERED ON THE ROLLING ELEMENTS. |
| . |
M |
SPECIAL MANUFACTURING QUALITY CONTROL. |
| . |
MA |
MACHINED BRASS CAGE, CENTERED ON THE ROLLING ELEMENTS. |
| . |
MB |
MACHINED BRASS CAGE, CENTERED ON THE INNER RING. |
| . |
N |
ISO STANDARD GROOVE IN OUTER RING FOR SNAP RING LOCATION. |
| . |
N2 |
TWO LOCATING SLOTS IN THE OUTER RING (QJ.. SERIES) |
| . |
NR(1) |
ISO STANDARD GROOVE IN OUTER RING WITH SNAP RING. |
| . |
P6X |
TAPERED ROLLER BEARINGS OF PRECISION CLASS ISO 6X. |
| . |
Q |
MODIFIED BORE. |
| . |
R |
MODIFIED CORNER RADIUS. |
| . |
R23 |
POINT OF MAXIMUM ECCENTRICITY MARKED ON THE INNER RING. |
| . |
S |
SPHERICAL OUTSIDE DIAMETER. |
| . |
S.. |
DESIGN CHANGE INDEX. |
| . |
T |
FLANGED OUTER RING. |
| . |
UA, UB |
DESIGN CHANGE INDICES. |
| . |
V |
INTERNAL DESIGN MODIFICATION. |
| . |
X |
STANDARD THRUST BEARINGS 51107 X AND 51206 X. |
| . |
Y |
POLYAMIDE CGAE, SEE G14 |
| . |
Z, ZZ |
SINGLE OR DOUBLE PRESSED STEEL SHIELDS. |
| . |
Z11 |
PRESSED STEEL FLINGER FOR E10 SEAL. |
| . |
Z15 |
PRESSED STEEL FLINGER FOR E10 AND E16 SEALS. |
| CM |
. |
CONE ASSEMBLY OF TAPERED ROLLER BEARING |
| CUV |
. |
CUP OF TAPERED ROLLER BEARING |
| D |
. |
TAPERED ROLLER TWIN LINE DERIVED FROM STANDARD BEARINGS |
| JT |
. |
SEAL |
| N,NJ,NF,NU,NUP |
. |
STANDARD CYLINDRICAL ROLLER BEARINGS. |
| N.. OR ..N |
. |
SPECIAL GROOVE ON THE OUTSIDE DIAMETER |
| Q.. OR ..Q |
. |
NON ISO BORE DIAMETER. |
| R.. OR ..R |
. |
SPECIAL CORNER RADII. |
| RN |
. |
CYLINDRICAL ROLLER BEARING WITHOUT OUTER RING. |
| RNU |
. |
CYLINDRICAL ROLLER BEARING WITHOUT INNER RING. |
| T |
. |
ISO STANDARD TAPERED ROLLER BEARING. TAPERED ROLLER THRUST BEARINGS WITH OUTSIDE RETAINER. |
| T.. OR ..T |
. |
BEARING WITH A NON-STANDARD FLANGED OUTER RING. |
| X.. OR ..X |
. |
NON STANDARD MODIFICATION OF THE BEARING ENVELOPE. |
| X.. OR ..X |
. |
NON STANDARD MODIFICATION OF THE BEARING ENVELOPE. |
| X..D |
. |
TAPERED ROLLER TWIN LINE WITH NON STANDARD ENVELOPE. |
| Y.. OR ..Y |
. |
MATERIAL MODIFICATION AND/OR SPECIAL HEAT TREATMENT (SPECIAL APPLICATIONS). |
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