| Prefix |
Suffix |
Definition |
| -35 |
|
MEDIUM DUTY RELUBRICATABLE BALL BEARING WITH NYLA-K SEAL |
| -35 |
|
MEDIUM DUTY BALL BEARING INSERT |
| -25 |
|
STANDARD DUTY RELUBRICATABLE BALL BEARING WITH NYLA-K SEAL |
| -25 |
|
STANDARD DUTY BALL BEARING INSERT |
| -15 |
|
LOW COST RELUBRICATABLE BALL BEARING WITH NYLAPLATE SEAL |
| -15 |
|
LOW COST RELUBRICATABLE BALL BEARING INSERT |
| -10 |
|
LOW COST NON-RELUBRICATABLE BALL BEARING WITH NYLAPLATE SEAL. |
| -10 |
|
LOW COST NON-RELUBRICATABLE BALL BEARING INSERT |
| 2 |
|
2-BOLT |
| 3 |
|
3-BOLT |
| 4 |
|
4-BOLT |
| |
L |
BEARING INSERT IS A METRIC SIZE LARGER THAN NORMAL FOR THAT PARTICULAR BORE SIZE. |
| |
S |
BEARING INSERT IS A METRIC SIZE SMALLER THAN NORMAL FOR THAT PARTICULAR BORE SIZE. |
| |
Z |
NO GREASE FITTING OR A PLUGGED GREASE FITTING HOLE. |
| AN |
|
SPHERE-ROL, LARGE LOCKNUT (SEE "N" PREFIX) |
| ASMO |
|
MULTIROL, SINGLE-ROW, OUTER RACE AND ROLLER ASSEMBLY, SELF-ALIGNING, SPHERICAL HOUSING AND O.D. |
| B |
|
BALL BEARING FOR PILLOW BLOCK (MFG. FOR BROWNING) |
| B |
|
SPHERICAL O.D. |
| BA |
|
ANNULAR BALL BEARING, SINGLE-ROW, COUNTERBORED OUTER RING, ANGULAR CONTACT, CONTACT ANGLE 22 DEGREES TO 32 DEGREES (THIS IS AN AFBMA DESIGNATION) |
| BB |
|
SPECIAL BALL BEARINGS |
| BC |
|
ANNULAR BALL BEARING, SINGLE-ROW, RADIAL, NON-LOADING GROOVE SELF-CONTAINED (THIS IS AND AFBMA DESIGNATION) |
| BH |
|
ANNULAR BALL BEARING, SINGLE-ROW, COUNTERBORED OUTER RING, RADIAL (THIS IS AN AFBMA DESIGNATION) |
| BM |
|
BALL BEARING FOR PILLOW BLOCK (MFG. FOR T.B. WOOD) |
| BN |
|
ANNULAR BALL BEARING, SINGLE-ROW, COUNTERBORED OUTER RING, ANGULAR CONTACT, CONTACT ANGLE 10 DEGREES TO 22 DEGREES (THIS IS AN AFBMA |
| BR |
|
SPECIAL ROLLER BEARING |
| BT |
|
ANNULAR BALL BEARING, SINGLE-ROW, COUNTERBORED OUTER RING, ANGULAR CON-TACT, CONTACT ANGLE 32 DEGREES TO 45 DEGREES (THIS IS AN AFBMA DESIGNATION) |
| C |
|
CYLINDRICAL O.D. |
| C |
|
GRAY IRON OR GRAY IRON PILLOW BLOCK. |
| C+ |
|
CAMROL, WITH CROWN RADIUS ON OUTER RING O.D. (PREFIX LETTER BEFORE BASIC BEARING TYPE) |
| CF |
|
CAMROL, CAM FOLLOWER, FULL COMPLIMENT ROLLER BEARING, WITH INTEGRAL STUD |
| CFH |
|
CAMROL, CAM FOLLOWER, FULL COMPLIMENT ROLLER BEARING WITH INTEGRAL HIGH CAPACITY STUD |
| CT |
|
SPECIAL ROLLER BEARING UTILIZING CENTER GUIDED ROLLER ASSEMBLY |
| CYR |
|
CAMROL, YOKE ROLLER, FULL COMPLIMENT ROLLER BEARING WITH INNER RACE FOR YOKE MOUNTING. |
| D |
|
DOUBLE LOCK (4 SET SCREWS) |
| D |
|
DOUBLE LOCK OR DUCTILE IRON PILLOW BLOCK. |
| EMRF |
|
CAGEROL, CAM FOLLOWER, HEAVY SECTION OUTER WITH INNER RING |
| ER |
|
CYLINDRICAL O.D. WITH SNAP RING AND LUBE GROOVE |
| F |
|
FLANGE |
| F+ |
|
PILLOW BLOCK SERIES, INDICATES 4-BOLT BASE ON SIZES NOT ALREADY HAVING THAT FEATURE (PREFIX LETTER BEFORE BASIC PILLOW BLOCK TYPE) |
| GR |
|
GUIDEROL, HEAVY DUTY ROLLER BEARING, SELF-CONTAINED, OUTER RACE AND CENTER GUIDED ROLLER ASSEMBLY. MT SERIES — INCH SERIES, AND CT SERIES - METRIC SERIES. NO INNER RACE. |
| GRI |
|
GUIDEROL, WITH SEPARABLE INNER RACE. METRIC SIZES. |
| GTR |
|
DRAWN CUP ROLLER BEARING, WITH ONE PIECE RETAINER, SINGLE-ROW OR ROLLERS, NO INNER, OPEN ENDS, PRECISION GROUND O.D. REGULAR ROLLER SERIES. |
| GTRH |
|
DRAWN CUP ROLLER BEARING, ONE PIECE RETAINER, SINGLE-ROW OF ROLLERS, NO INNER RACE, OPEN ENDS, PRECISION GROUND O.D. , LARGE ROLLER SERIES. |
| GTRL |
|
DRAWN CUP ROLLER BEARING, ONE-PIECE RETAINER, SINGLE-ROW OF ROLLERS, NO INNER RACE, OPEN ENDS, PRECISION GROUND O.D., EXTRA LARGE ROLLER SERIES. |
| H |
|
MALLEABLE IRON OR MALLEABLE IRON PILLOW BLOCK. |
| H |
|
PROTECTED SCREW TYPE WELDED TAKE-UP FRAME |
| H+ |
|
CAM FOLLOWER, STEM HEAT TREATED FOR HIGH STRENGTH (PREFIX LETTER BEFORE BASIC BEARING NUMBER) |
| I |
|
INNER RACE ONLY FOR GR-CT SERIES, GUIDEROL ROLLER BEARING MULTIROL, SINGLE-ROW, INNER RACE AND ROLLER ASSEMBLY, END" PLATE TYPE (OBSOLETE, SEE "SR") |
| IRD |
|
MULTIROL, DOUBLE-ROW, INNER RACE AND ROLLER ASSEMBLY, END PLATE TYPE (OBSOLETE, SEE "SR") |
| L |
|
LOW SHAFT CENTERLINE |
| M |
|
HCGILL BEARING |
| MI |
|
INNER RACE ONLY FOR GR, MO, MR SERIES BEARINGS |
| MO |
|
MULTIROL, FULL TYPE ROLLER BEARING, SINGLE-ROW OUTER RACE AND ROLLER ASSEMBLY, SOLID LIP TYPE |
| MR |
|
1. CAGEROL, HEAVY DUTY ROLLER BEARING, ONE PIECE RETAINER, SINGLE-ROW OF ROLLERS, NO INNER RACE, REGULAR ROLLER SERIES 2. CAGEROL, SPECIAL BEARING |
| MRF |
|
CAGEROL CAM FOLLOWER, CAGEROL BEARING WITH HEAVY OUTER RING |
| MRH |
|
CAGEROL, HEAVY DUTY ROLLER BEARING, ONE-PIECE RETAINER, SINGLE-ROW OF ROLLERS, NO INNER RACE, LARGE ROLLER SERIES |
| MRN |
|
CAGEROL, HEAVY DUTY ROLLER BEARING, ONE-PIECE MOLDED RETAINER, SINGLE-ROW OF ROLLERS, NO INNER RACE, REGULAR ROLLER SERIES |
| MRS |
|
CAGEROL, HEAVY DUTY ROLLER BEARING, ONE-PIECE RETAINER, SINGLE-ROW OF ROLLERS, NO INNER RACE, REGULAR ROLLER SERIES, NON-PRECISION BEARING |
| MT |
|
GUIDEROL, INCH SERIES |
| N |
|
SPHERE-ROL, LOCK-NUT (SEE "AN" PREFIX) |
| N |
|
NICKEL PLATED HOUSING |
| NBC |
|
AIRFRARAE HEAVY DUTY TYPE ROLLER BEARING, NON-SEPARABLE, SINGLE-ROW OF ROLLERS |
| NBE |
|
AIRFRAME HEAVY DUTY ROLLER BEARING, SELF-ALIGNING, SINGLE-ROW OF ROLLERS |
| NBK |
|
AIRFRAME HEAVY DUTY TYPE ROLLER BEARING, SELF-ALIGNING DOUBLE-ROW OF ROLLERS |
| NBL |
|
AIRFRAME HEAVY DUTY TYPE TRACK ROLLER, ROLLER BEARING, NONSEPARABLE, DOUBLE-ROW OF ROLLERS |
| NYR |
|
MOLDED SYNTHETIC RETAINER AND ROLLER ASSEMBLY ONLY |
| OD |
|
MULTIROL ROLLER BEARING, DOUBLE-ROW, OUTER RACE AND ROLLER ASSEMBLY, END PLATE TYPE (OBSOLETE, SEE "SR") |
| OS |
|
MULTIROL, ROLLER BEARING, SINGLE-ROW, OUTER RACE AND ROLLER ASSEMBLY, END PLATE TYPE (OBSOLETE, SEE "SR") |
| P |
|
STAMPED STEEL OR STAMPED STEEL PILLOW BLOCK |
| PF |
|
PILOTED FLANGE |
| R |
|
1. CAMROL, RETAINER TYPE (LETTER MUST BE USED WITH BASIC CAMROL PREFIX) 2. RETAINER, ONE-PIECE, SINGLE-ROW, MACHINED |
| R |
|
REVERSED OUTER RACE (LUBE GROOVE ON OPPOSITE SIDE) |
| RD |
|
MULTIROL, SELF-CONTAINED, DOUBLE-ROW, OUTER RACE AND NEEDLE ASSEMBLY, (END PLATE TYPE) AND INNER RACE |
| RF |
|
CYLINDRICAL ROLLER BEARING, ONE LIP OUTER RING, TWO LIP INNER RING, ROLLERS AND CAGE, OUTER RING SEPARABLE |
| RJ |
|
CYLINDRICAL ROLLER BEARING, ONE LIP INNER RING, TWO LIP OUTER RING, ROLLERS AND CAGE, INNER RING SEPARABLE |
| RMI |
|
INNER RACE (WITH REDUCED O.D.) ONLY FOR GR, MO, MR SERIES BEARINGS |
| RN |
|
CYLINDRICAL ROLLER BEARING, TWO LIP INNER 'RING, CYLINDRICAL OUTER RING, ROLLER AND CAGE, SEPARABLE OUTER RING |
| RP |
|
RETAINER, TWO-PIECE, SINGLE-ROW, PRESS FORMED |
| RS |
|
1. MULTIROL, NEEDLE BEARING, SELF-CONTAINED, SINGLE-ROW, OUTER RACE AND NEEDLE ASSEMBLY, (END PLATE TYPE) AND INNER RACE 2. CAM FOLLOWER, AIRCRAFT TYPE I |
| RT |
|
CAM FOLLOWER, AIRCRAFT TYPE |
| RU |
|
CYLINDRICAL ROLLER BEARING, TWO LIP OUTER RING, CYLINDRICAL INNER RING, ROLLER AND CAGE, SEPARABLE INNER RING |
| S |
|
1. SPHERE-ROL, TAPERED ADAPTER SLEEVE 2. PILLOW BLOCK SERIES, INDICATES CAST STEEL HOUSING (LETTER MUST BE USED WITH BASIC PILLOW BLOCK PREFIX) |
| SAP |
|
PILLOW BLOCK SERIES, SPLIT HOUSING WITH SPHERE-ROL BEARING (HOUSING CAST IRON, SEE "S" PREFIX FOR CAST STEEL) |
| SB |
|
SPHERE-ROL, SINGLE-ROW SPHERICAL ROLLER BEARING |
| SC |
|
BALL BEARING FOR PILLOW BLOCK (MFG. FOR DODGE) |
| SDAF |
|
PILLOW BLOCK SERIES, HEAVY DUTY SPLIT HOUSING WITH SPHERE-ROL BEARING -(HOUSING CAST IRON - SEE "S" PREFIX FOR CAST STEEL) |
| SE |
|
SPECIAL "MO" AND RELATED "MI" BEARINGS (INCLUDES ALL SOLID LIP BEARINGS) |
| SEE |
|
SPHERE-ROL, WITH ECCENTIRC LOCKING COLLAR FOR PILLOW BLOCK MOUNTING |
| SFBA |
|
SPHERE-ROL, ADAPTER MOUNTED IN FLANGE PILLOW BLOCK MOUNTING |
| SK |
|
SPECIAL, ALL OTHER BEARINGS OR PARTS OF SPECIAL DESIGN |
| SMO |
|
MULTIROL, WITH SPHERICAL O.D. |
| SNW |
|
SPHERE-ROL, COMPLETE TAPER ADAPTER UNIT (SLEEVE, NUT, LOCKING WASHER) |
| SPBA |
|
SPHERE-ROL, ADAPTER MOUNTED, IN BASE MOUNTED PILLOW BLOCK |
| SPBE |
|
SPHERE-ROL, SERIES BEARING WITH ECCENTRIC LOCKING COLLAR, IN BASE MOUNTED PILLOW BLOCK |
| SR |
|
SPECIAL RS, RD, OS, OD, IR, IRD BEARINGS |
| STR |
|
STEEL RETAINER AND ROLLER ASSEMBLY ONLY |
| T |
|
TAKE-UP BLOCK |
| TR |
|
DRAWN CUP ROLLER BEARING, ONE-PIECE RETAINER, SINGLE-ROW OF ROLLERS, NO INNER RACE , OPEN ENDS , REGULAR ROLLER SERIES- |
| TRH |
|
DRAWN CUP ROLLER BEARING, ONE-PIECE RETAINER, SINGLE-ROW OF ROLLERS, NO INNER RACE, OPEN ENDS, LARGE ROLLER SERIES |
| TRL |
|
DRAWN CUP ROLLER BEARING, ONE-PIECE RETAINER, SINGLE-ROW OF ROLLERS, NO INNER RACE, OPEN ENDS, EXTRA LARGE ROLLER |
| V |
|
VERTICAL TYPE WELDED TAKE-UP FRAME |
| W |
|
SPHERE-ROL, LOCK-WASHER |
| W |
|
EXTRA WIDE INNER RACE |
| W |
|
EXTRA WIDE INNER RACE |
| YR |
|
SPECIAL CYR BEARINGS |
| |
|
SPHERE-ROL, INDICATES STANDARD DIAMETRAL CLEARANCE •• |
| |
9 |
CAMROL, INDICATES CLOSE RUNNING CLEARANCE BETWEEN OUTER RING COUNTER-BORE AND FLANGE O.D. (0.003 INCH) |
| |
10 |
CAGEROL, RETAINER NOT PENTRATE TREATED |
| |
20 |
MULTIROL, NEW DESIGN, SPRING STEEL RINGS REPLACE ROLLED LIPS |
| |
30 |
MULTIROL, MI INNERS , OLD STYLE LARGE DIAMETER RACE |
| |
100 |
CAGEROL, SPLIT INTO TWO HALVES |
| |
A |
1. CAMROL, CAM FOLLOWER, RADIAL OIL HOLE OMITTED IN STEIN OR PLUGGED 2. SPHERE-ROL, WITH TAPERED BORE PLUS ADAPTER SLEEVE, LOCKNUT AND LOCKWASHER |
| |
AL |
ALUMINUM ALLOY RETAINER OR SEPARATOR |
| |
B |
CAMROL, CAM FOLLOWER, HEXAGONAL HOLE REPLACES SCREWDRIVER SLOT IN FLANGE END OF STEM |
| |
C |
STANDARD BEARING, ALL EXTERNAL SURFACES CHROME PLATED |
| |
C2 |
EPHERE-ROL, INDICATES DIAMETRAL CLEARANCE LESS THAN STANDARD |
| |
C3 |
SPHERE-ROL, INDICATES DIAMETRAL CLEARANCE LARGER THAN STANDARD |
| |
C4 |
SPHERE-ROL, INDICATES DIAMETRAL CLEARANCE LARGER THAN C3 |
| |
CL |
SPHERE-ROL, INDICATES DIAMETRAL CLEARANCE LESS THAN C2 -..S- |
| |
CP |
STANDARD BEARING WITH CHROME PLATED O.D., ALL OTHER EXPOSED SURFACES, AS MOUNTED, CADMIUM PLATED |
| |
CR |
STAINLESS STEEL (CORROSION-RESISTING) |
| |
CU |
COPPER ALLOY RETAINER OR SEPARATOR |
| |
D |
ROLLER BEARING PRECISION MATCHING IN GROUPS OF TWO OR MORE (*, NUMBER IN THIS POSITION INDICATES HOW MANY IN THE MATCHED GROUP WHEN THREE OR MORE ARE MATCHED) |
| |
DB |
OBSOLETE, SEE "R" |
| |
DF |
OBSOLETE, SEE "U" |
| |
DO |
UNIVERSALLY DUPLEXED BEARINGS |
| |
DRV |
NO LUBRICATION, PRESERVATIVE OPTIONAL |
| |
DS |
ROLLER BEARING SUPER PRECISION MATCHING IN GROUPS OF TWO OR MORE (*, NUMBER IN THIS POSITION INDICATES HOW MANY IN THE MATCHED GROUP WHEN THREE OR MORE ARE MATCHED) |
| |
DT |
OBSOLETE, SEE "T" |
| |
E |
SPHERE-ROL, INDICATES ENDPLAY FOR SHAFT EXPANSION |
| |
F |
1. AIRFRAME BEARING, LUBRICATION HOLE IN OUTER RACE 2. PILLOW BLOCK SERIES, INDICATES BEARING FIXED IN HOUSING (NOT FLOATING) 3. SINGLE SHIELD (OBSOLETE SUFFIX) |
| |
FE |
IRON ALLOY RETAINER OR SEPARATOR |
| |
FF |
DOUBLE SHIELD (OBSOLETE SUFFIX) |
| |
FFG |
DOUBLE SHIELD WITH SNAP RING AND GROOVE ON OUTER RING O.D. (OBSOLETE SUFFIX) |
| |
FG |
SINGLE SHIELD, WITH SNAP RING AND GROOVE ON SIDE OPPOSITE SHIELD (OBSOLETE SUFFIX) |
| |
FG-1 |
SINGLE SHIELD, WITH SNAP RING AND GROOVE ON SAME SIDE AS SHIELD (OBSOLETE SUFFIX) |
| |
G |
1. SNAP RING AND GROOVE ON OUTER RING O.D. (OBSOLETE SUFFIX) 2. MI INNER, (*, NUMBER IN THIS POSITION INDICATES O.D. LARGER THAN STANDARD BY 1/32 INCREMENTS) |
| |
GH |
SNAP RING WITH HOOK AND GROOVE ON OUTER RING O.D. (OBSOLETE SUFFIX) |
| |
GO |
SNAP RING GROOVE ONLY ON OUTER RING O.D. (OBSOLETE SUFFIX) |
| |
J |
AIRFRAME BEARING, OUTER O.D. AND O.D. CORNERS CHROME PLATED AND OTHER EXPOSED SURFACES CADMIUM PLATED AS MOUNTED |
| |
K |
SPHERE-ROL, WITH TAPERED BORE (1:12 TAPER ON DIAMETER) |
| |
KE |
SPHERE-ROL, TAPERED BORE, EXPANSION FEATURE |
| |
KM |
K-MONEL METAL |
| |
L |
LARGER METRIC SIZE THAN NORMAL FOR THAT PARTICULAR BORE SIZE. |
| |
LER |
PILLOW BLOCK SERIES, LABYRINTH SEAL RING (PILLOW BLOCK COMPONENT PART) |
| |
LH |
LEFT HAND THREAD FOR CF CAM FOLLOWERS OF STANDARD CATALOG ITEM |
| |
M |
MAXIMUM CAPACITY OR LOADING GROOVE TYPE BALL BEARING |
| |
N |
NARROW |
| |
NM |
NARROW-MAXIMUM OR LOADING GROOVE TYPE BALL BEARING (OBSOLETE SUFFIX) |
| |
NS |
NON-SEPARABLE (SELF-CONTAINED) |
| |
P |
1. STANDARD BEARING, ALL EXTERNAL SURFACES CADMIUM PLATED 2. AIRFRAME BEARING, EXPOSED SURFACES CADMIUM PLATED AS MOUNTED 3. PILLOW BLOCK SERIES, INDICATES PLUG TO CLOSE ONE END OF HOUSING |
| |
PC |
SYNTHETIC RETAINER OR SEPARATOR |
| |
PEN |
BLACK OXIDE FINISH |
| |
PT |
SYNTHETIC TIRE ON BEARING O.D. |
| |
R |
1. RADIALLY FITTED GURNEY TYPE BEARINGS, OTHER 7000 SERIES (OBSOLETE) 2. PAIRED BEARINGS DUPLEX MOUNTED BACK-TO-BACK |
| |
RS |
•CAGEROL OR GUIDEROL, SEALED ON ONE SIDE, (SEAL LIP OUTSIDE OF BEARING) |
| |
RSS |
CAGEROL OR GUIDEROL, SEALED ON BOTH SIDES, (SE'AL LIP TO OUTSIDE OF BEARING) |
| |
S |
SMALLER METRIC SIZE THAN NORMAL FOR THAT PARTICULAR BORE SIZE |
| |
SEL |
BEARING SELECTED FROM STOCK FOR SPECIAL TOLERANCE RANGE OR FEATURE |
| |
SL |
SPHERE-ROL, SEALED, LARGE BORE SIDE ONLY WITH TAPERED BORE |
| |
SOL |
"RS" DIMENSIONAL MO BEARINGS |
| |
SR |
PILLOW BLOCK SERIES, STABILIZING RING (PILLOW BLOCK COMPONENT PART) |
| |
SRS |
CAGEROL OR GUIDEROL, SEALED BOTH SIDES (ONE SEAL FACING INWARD, OTHER SEAL FACING OUTWARD) |
| |
SS |
1. CAGEROL OR GUIDEROL , SEALED BOTH SIDES (SEAL LIPS TO INSIDE OF BEARING) 2. SPHERE-ROL, BOTH SIDES SEALED |
| |
T |
SPHERE-ROL, TEFLON SEAL (*, NUMBER IN THIS POSITION INDICATES SEAL CONFIGURATION) |
| |
T |
1. CAMROL , CAM FOLLOWER, AXIAL LUBRICATION HOLE IN STEM (SPECIAL FEATURE ON SMALL CAM FOLLOWERS) 2. BALL BEARINGS DUPLEX MOUNTED IN TANDEM 3. RETAINER, STEEL, TUFFTRIDAD |
| |
U |
DUPLEX MOUNTED, FACE-TO-FACE |
| |
UNA |
UNASSEMBLED BEARING WITH ALL COMPONENTS |
| |
V733 |
SPHERE-ROL, WITH ANNULAR GROOVE AND LUBRICATION HOLES IN O.D. |
| |
W |
WIDE WIDTH |
| |
W/O |
WITHOUT A STANDARD COMPONENT (SEALS FOR EXAMPLE) |
| |
W20 |
SPHERE-ROL, WITH LUBRICATION HOLES IN BEARING O.D. |
| |
W22 |
SPHERE-ROL, WITH SELECTED O.D. |
| |
Y |
1. ' AIR FRAME BEARING, ANNULAR LUBRICATION GROOVE IN BORE AND LUBE HOLES IN INNER RING ' 2. SEE BELOW |
| |
Z |
AIRFRAME BEARING, ANNULAR LUBRICATION GROOVE IN O.D. AND LUBE HOLES IN OUTER RING |
