| Prefix | Suffix | Definition |
| . | B | ROLLERS AND CAGE CONTAINED BY OUTER RING, CYLINDRICAL ROLLER BEARING |
| . | F | OUTER RING O.D. DOWEL HOLE. |
| . | G | OUTER RING O.D. SNAP RING GROOVE |
| . | KA | SAME AS PREFIX KA EXCEPT FOR OUTER RING |
| . | L | ONE LIP OUTER RING, CYLINDRICAL ROLLER BEARING |
| . | M | FULL COMPLEMENT OF ROLLERS, ON RETAINER (CAGE, SEPARATOR), CYLINDRICAL RGLLER BEARING |
| . | P | PRECISION GRADE RBEC-5 VARIANTS OF HIGHER ACCURACY ARE SYMBOLED PA, PB, ETC. IN ORDER OF THEIR OCCURRENCE |
| . | PA | SEE SUFFIX P |
| . | PB | SEE SUFFIX P |
| . | RZ | SELF-ALIGNING ROLLER BEARING, ANGULAR CONTACT TYPE, BARREL SHAPED ROLLERS , NO INNER RING |
| . | S | RETAINER (CAGE, SEPARATOR) TYPE CYLINDRICAL ROLLER BEARING |
| . | SZ | SELF-ALIGNING ROLLER BEARING, ANGULAR CONTACT TYPE, BARREL SHAPED ROLLERS , NO INNER RING |
| . | T | CYLINDRICAL OUTER RING, CYLINDRICAL ROLLER BEARING, WITH TWO ROLLER RETAINMENT RINGS |
| . | TM | CYLINDRICAL ROLLER BEARING, CYLINDRICAL OUTER RING WITH TWO ROLLER RETAINMENT RINGS, NO INNER RING, FULL COMPLEMENT OF ROLLERS |
| . | TS | CYLINDRICAL ROLLER BEARING, CYLINDRICAL OUTER RING WITH TWO ROLLER RETAINMENT RINGS, WITH CAGE (RETAINER), NO INNER RING |
| . | W | OUTER RING ONLY, SELF-ALIGNING ROLLER BEARING, ANGULAR CONTACT TYPE |
| . | W | TWO LIP OUTER RING, CYLINDRICAL ROLLER BEARING |
| . | WB | CYLINDRICAL ROLLER BEARING, TWO LIP OUTER RING, CAGE (RETAINER) TYPE, NO INNER RING |
| . | Y | OUTER RACE ONLY, SELF-ALIGNING ROLLER BEARING, ANGULAR CONTACT TYPE |
| . | Y | ONE LIP OUTER RING, CYLINDRICAL ROLLER BEARING, WITH ONE ROLLER RETAIN-MENT RING |
| . | YM | CYLINDRICAL ROLLER BEARING, ONE LIP OUTER RING WITH ONE ROLLER RETAIN-MENT RING, NO INNER RING, FULL COMPLEMENT OF ROLLERS |
| . | YS | CYLINDRICAL ROLLER BEARING, ONE LIP OUTER RING WITH ONE ROLLER RETAIN-MENT RING, CAGE (RETAINER) TYPE, NO INNER RING |
| . | Z | OUTER RING ONLY, SELF-ALIGNING ROLLER BEARING, ANGULAR CONTACT TYPE |
| . | Z | CYLINDRICAL OUTER RING, CYLINDRICAL ROLLER BEARING |
| . | ZA | CYLINDRICAL OUTER RING, CYLINDRICAL ROLLER BEARING, WITH SPECIAL DETAILS OR CONSTRUCTION |
| . | ZB | CYLINDRICAL OUTER RING, CYLINDRICAL ROLLER BEARING, WITH SPECIAL DETAILS OR CONSTRUCTION |
| . | ZD | DOUBLE CUP, TAPERED ROLLER BEARING |
| .TM | . | JOURNAL ROLLER BEARING, NOTCHED INNER RING CONSTRUCTION, SPECIAL WIDTH |
| A | . | INNER RING ONLY, SELF-ALIGNING ROLLER BEARING, ANGULAR CONTACT |
| A | . | CYLINDRICAL INNER RING, CYLINDRICAL ROLLER BEARING (E.G. A1205) VARIANTS FROM STANDARD ARE LABELLED AB , AC, ETC. |
| A | TS | CYLINDRICAL ROLLER BEARING: CYLINDRICAL OUTER RING WITH CAGE, ROLLER COMPLEMENT AND TWO ROLLER RETAINMENT RINGS, CYLINDRICAL SEPARABLE INNER RING |
| A | WB | CYLINDRICAL ROLLER BEARING: TWO LIP OUTER RING, SEPARABLE CYLINDRICAL INNER RING, WITH RETAINER (CAGE) |
| A | Z | SELF-ALIGNING ROLLER BEARING, NON-SEPARABLE, ANGULAR CONTACT TYPE, BARREL SHAPED ROLLERS |
| A | ZK | SELF -ALIGNING ROLLER BEARING, NON-SEPARABLE, ANGULAR CONTACT TYPE, BARREL SHAPED ROLLERS |
| A-62 | TS | CYLINDRICAL ROLLER BEARING: CYLINDRICAL OUTER RING WITH DOUBLE-ROW OF CAGED ROLLERS AND TWO ROLLER RETAINMENT RINGS, SEPARABLE CYLINDRICAL INNER RING |
| B | . | INNER RING ONLY, SELF-ALIGNING ROLLER BEARING, ANGULAR CONTACT TYPE |
| B | . | ROLLERS AND CAGE CONTAINED BY INNER RING, CYLINDRICAL ROLLER BEARING |
| B | YK | SELF-ALIGNING ROLLER BEARING, NON-SEPARABLE, ANGULAR CONTACT TYPE, BARREL SHAPED ROLLERS |
| BU | . | CYLINDRICAL ROLLER BEARING, TWO LIP INNER RING, CAGE AND ROLLERS, NOT OUTER RING |
| BU | L | CYLINDRICAL ROLLER BEARING, ONE LIP OUTER RING, TWO LIP INNER RING, ROLLERS AND CAGE , OUTER RING SEPARABLE |
| BU | Z | CYLINDRICAL ROLLER BEARING, CYLINDRICAL OUTER RING, TWO LIP INNER RING, ROLLERS AND CAGE , OUTER RING SEPARABLE |
| C | . | JOURNAL ROLLER BEARING, OUTER RING AND ROLLER ASSEMBLY INNER RING OMITTED |
| CD | . | DOUBLE WIDE SERIES JOURNAL ROLLER BEARING WITHOUT INNER RING |
| CSD | . | SPECIAL DIMENSIONED, DOUBLE WIDE SERIES JOURNAL ROLLER BEARING WITHOUT INNER RING |
| CSW | . | SPECIAL DIMENSIONED WIDE SERIES JOURNAL ROLLER BEARING WITHOUT INNER RING |
| CW | . | WIDE SERIES JOURNAL ROLLER BEARING WITHOUT INNER RING |
| D | . | INNER RACE ONLY, SELF-ALIGNING ROLLER BEARING, ANGULAR CONTACT TYPE |
| D | . | DOUBLE WIDTH SERIES JOURNAL ROLLER BEARING |
| DIR | . | DOUBLE WIDTH SERIES INNER RING JOURNAL ROLLER BEARING |
| DOR | . | DOUBLE WIDTH SERIES OUTER RING JOURNAL ROLLER BEARING |
| E | . | CONE SPACER, TAPERED ROLLER BEARING |
| E | . | JOURNAL ROLLER BEARING, INNER RING AND ROLLER ASSEMBLY, NO OUTER RING |
| EA | ZD | TAPERED ROLLER BEARING, DOUBLE-ROW OF ROLLERS |
| EB | ZD | TAPERED ROLLER BEARING, DOUBLE-ROW OF ROLLERS |
| ED | . | JOURNAL ROLLER BEARING, DOUBLE-WIDTH SERIES, OUTER RING OMITTED |
| EN | . | JOURNAL ROLLER BEARING, NARROW SERIES, OUTER RING OMITTED |
| G | . | INNER RACE ONLY, SELF -ALIGNING ROLLER BEARING, ANGULAR CONTACT TYPE |
| H | . | INNER RING ONLY, SELF-ALIGNING ROLLER BEARING, ANGULAR CONTACT TYPE |
| HP | . | JOURNAL ROLLER BEARING, ROLLER ASSEMBLY AND MILL TREATED, PLANISHED, SPLIT TYPE, OUTER RING |
| IR | . | INNER RING, JOURNAL ROLLER BEARING |
| J | . | SEPARABLE LIP, INNER RING CYLINDRICAL ROLLER BEARING (SEE JRN AND RN) |
| JRN | . | INNER RING, CYLINDRICAL ROLLER BEARING, TWO LIPPED, ONE LIP SEPARABLE |
| JRN | WB | CYLINDRICAL ROLLER BEARING, TWO LIP OUTER RING, TWO LIP INNER RING, ONE LIP OF INNER RING SEPARABLE RETAINER (CAGE) TYPE |
| KA | . | INNER RING AND ROLLER ASSEMBLY, SELF-ASSEMBLY, SELF-ALIGNING ROLLER BEARING, ANGULAR CONTACT TYPE BARREL SHAPED ROLLERS |
| KA | Z | SELF-ALIGNING ROLLER BEARING, ANGULAR CONTACT TYPE, BARREL SHAPED ROLLERS COMPLETED WITH OUTER AND INNER RING AND ROLLER ASSEMBLY, OUTER RING SEPARABLE |
| KB | . | INNER RING AND ROLLER ASSEMBLY, SELF -ALIGNING ROLLER BEARING, ANGULAR CONTACT TYPE, BARREL ROLLERS |
| KB | W | SELF-ALIGNING ROLLER BEARING, SEPARABLE OUTER RING, ANGULAR CONTACT TYPE, BARREL SHAPED ROLLERS |
| KB | Y | SELF -ALIGNING ROLLER BEARING, ANGULAR CONTACT TYPE, BARREL SHAPED ROLLERS, SEPARABLE OUTER RING |
| KB | Z | SELF-ALIGNING ROLLER BEARING, ANGULAR CONTACT TYPE, BARREL SHAPED ROLLERS, SEPARABLE OUTER RING |
| KC | . | INNER RING AND ROLLER ASSEMBLY FOR SELF-ALIGNING ROLLER BEARING, ANGULAR CONTACT TYPE, BARREL SHAPED ROLLERS |
| KC | Y | SELF-ALIGNING ROLLER BEARING, ANGULAR CONTACT TYPE, BARREL SHAPED ROLLERS , SEPARABLE OUTER RING |
| KC | Z | SELF-ALIGNING ROLLER BEARING, ANGULAR CONTACT TYPE, BARREL SHAPED ROLLERS , SEPARABLE OUTER RING |
| KD | . | INNER RING AND ROLLER ASSEMBLY FOR SELF-ALIGNING ROLLER BEARING, ANGULAR CONTACT, BARREL SHAPED ROLLERS |
| KD | Y | SELF -ALIGNING ROLLER BEARING, ANGULAR CONTACT TYPE, BARREL SHAPED ROLLERS, SEPARABLE OUTER RING |
| KD | Z | SELF-ALIGNING ROLLER BEARING, ANGULAR CONTACT, BARREL SHAPED ROLLERS, SEPARABLE OUTER RING |
| KG | . | INNER RING AND ROLLER ASSEMBLY FOR SELF-ALIGNING ROLLER BEARING, ANGULAR CONTACT, BARREL SHAPED ROLLERS |
| KG | W | SELF-ALIGNING ROLLER BEARING, ANGULAR CONTACT TYPE, BARREL SHAPED ROLLERS, SEPARABLE OUTER RING |
| KG | Z | SELF-ALIGNING ROLLER BEARING, ANGULAR CONTACT TYPE, BARREL SHAPED ROLLERS, SEPARABLE OUTER RING |
| KH | . | SELF-ALIGNING ROLLER BEARING, ANGULAR CONTACT, BARREL SHAPED ROLLERS, SEPARABLE OUTER RING |
| KH | . | INNER RING AND ROLLER ASSEMBLY FOR SELF-ALIGNING ROLLER BEARING, ANGULAR CONTACT, BARREL SHAPED ROLLERS |
| KL | . | INNER RING AND ROLLER ASSEMBLY, SELF-ALIGNING ROLLER BEARING, ANGULAR CONTACT TYPE, BARREL SHAPED ROLLERS |
| KL | W | SELF -ALIGNING ROLLER BEARING, ANGULAR CONTACT, BARREL SHAPED ROLLERS, SEPARABLE OUTER RING |
| L | . | INNER RING ONLY, SELF-ALIGNING ROLLER BEARING, ANGULAR CONTACT TYPE |
| M | . | JOURNAL ROLLER BEARING, SPECIAL WIDTH, WOUND ROLLERS |
| MC | . | SPECIAL WIDTH JOURNAL ROLLER BEARING WITHOUT INNER RING, WOUND ROLLERS |
| MIR | . | INNER RIRFG,- SPECIAL WIDTH JOURNAL ROLLER BEARING |
| MOR | . | OUTER RING, SPECIAL WIDTH, JOURNAL ROLLER BEARING |
| MRA | . | ROLLER ASSEMBLY, JOURNAL ROLLER BEARING, WOUND ROLLERS, SPECIAL WIDTH |
| N | . | JOURNAL ROLLER BEARING, NARROW SERIES |
| NC | . | NARROW SERIES JOURNAL ROLLER BEARING WITHOUT INNER RING |
| NIR | . | INNER RING JOURNAL ROLLER BEARING, NARROW SERIES |
| NOR | . | OUTER RING JOURNAL ROLLER BEARING, NARROW SERIES |
| NRA | . | ROLLER ASSEMBLY, JOURNAL ROLLER BEARING, NARROW SERIES |
| OR | . | OUTER RING JOURNAL ROLLER BEARING |
| P | . | SEPARABLE INNER RING LIP, ADAPTED FOR USE WITH RR TYPE INNER RING (SEE PRR AND RR) |
| PRR | . | INNER RING, CYLINDRICAL ROLLER BEARING, TWO LIPPED, ONE LIP SEPARABLE AND EXTENDED' |
| PRR | WB | CYLINDRICAL ROLLER BEARING, TWO LIP OUTER RING, TWO LIP INNER RING, ONE INNER RING LIP SEPARABLE AND EXTENDED |
| PRR | WB | CYLINDRICAL ROLLER BEARING, TWO LIP OUTER RING, TWO LIP INNER RING, ONE LIP OF INNER RING SEPARABLE AND EXTENDS BEYOND OUTER RING RETAINER (CAGE TYPE) |
| R | . | ONE LIPPED INNER RING, CYLINDRICAL ROLLER BEARING |
| R | TS | CYLINDRICAL ROLLER BEARING, ONE LIP INNER RING, CYLINDRICAL OUTER RING WITH TWO ROLLER RETAINMENT RINGS , CAGE (RETAINER) TYPE |
| R | WB | CYLINDRICAL ROLLER BEARING, TWO LIP OUTER RING, ONE LIP INNER RING CAGE (RETAINER) TYPE |
| R | YS | CYLINDRICAL ROLLER BEARING, ONE LIP OUTER RING WITH ONE ROLLER RETAINMENT RING, ONE LIP INNER RING CAGE (RETAINER) TYPE |
| RA | . | ROLLER ASSEMBLY, JOURNAL ROLLER BEARING |
| RR | . | INNER RING, CYLINDRICAL ROLLER BEARING, ADAPTED TO RECEIVE SEPARABLE "P" TYPE LIP (SEE PRR) |
| RW | . | INNER RING, CYLINDRICAL ROLLER BEARING, ONE LIP ADAPTED TO RECEIVE SEPARABLE SECOND "J" TYPE LIP- SEE JRN PREFIX |
| S | . | SPECIAL DIMENSIONS, JOURNAL ROLLER BEARING OR COMPONENT PARTS |
| S | . | JOURNAL ROLLER BEARING, SOLID OUTER RING AND ROLLER ASSEMBLY, NO INNER RING |
| SD | . | SPECIAL DIMENSIONED DOUBLE WIDE SERIES, JOURNAL ROLLER BEARING |
| SDIR | . | INNER RING, SPECIAL DIMENSIONED DOUBLE WIDE SERIES, JOURNAL ROLLER BEARING |
| SDOR | . | OUTER RING, SPECIAL DIMENSIONED DOUBLE WIDE SERIES, JOURNAL ROLLER BEARING |
| SDRA | . | ROLLER ASSEMBLY, SPECIAL DIMENSIONED DOUBLE WIDE SERIES, JOURNAL ROLLER BEARING |
| SIR | . | SPECIAL DIMENSIONS, INNER RING JOURNAL ROLLER BEARING |
| SOR | . | SPECIAL DIMENSIONS, OUTER RING JOURNAL ROLLER BEARING |
| SW | . | SPECIAL DIMENSIONED, WIDE SERIES, JOURNAL ROLLER BEARING |
| SWIR | . | SPECIAL DIMENSIONED, WIDE SERIES, INNER RING, JOURNAL ROLLER BEARING |
| SWOR | . | SPECIAL DIMENSIONED, WIDE SERIES, OUTER RING, JOURNAL ROLLER BEARING |
| SWRA | . | SPECIAL DIMENSIONED, WIDE SERIES, ROLLER ASSEMBLY, JOURNAL ROLLER BEARING |
| T | . | NOTCHED INNER RACE CONSTRUCTION, JOURNAL ROLLER BEARING |
| TA | Z | SELF-ALIGNING ROLLER BEARING, DOUBLE-ROW OF ROLLERS, NON-SEPARABLE, ANGULAR CONTACT TYPE, BARREL SHAPED ROLLERS |
| TMIR | . | NOTCHED INNER RACE, JOURNAL ROLLER BEARING, SPECIAL WIDTH |
| TSIR | . | NOTCHED INNER RING, JOURNAL ROLLER BEARING |
| TSW | . | JOURNAL ROLLER BEARING, SPECIAL DIMENSIONED WIDE SERIES, NOTCHED INNER RING CONSTRUCTION |
| TSWIR | . | NOTCHED INNER RING/ SPECIAL DIMENSIONED WIDE SERIES, JOURNAL ROLLER BEARING |
| TW | . | JOURNAL ROLLER BEARING, WIDE SERIES, NOTCHED INNER RING CONSTRUCTION |
| TWIR | . | NOTCHED INNER RING, WIDE SERIES, JOURNAL ROLLER BEARING |
| TX | . | NOTCHED INNER RING CONSTRUCTION, JOURNAL ROLLER BEARING |
| TXW | . | NOTCHED INNER RING CONSTRUCTION, WIDE SERIES, JOURNAL ROLLER BEARING |
| U | . | TWO LIPPED INNER RING CYLINDRICAL ROLLER BEARING |
| U | TM | CYLINDRICAL ROLLER BEARING, TWO LIP INNER RING, CYLINDRICAL OUTER RING WITH TWO ROLLER RETAINMENT RINGS, FULL COMPLEMENT OF ROLLERS |
| U | TS | CYLINDRICAL ROLLER BEARING, TWO LIP INNER RING, CYLINDRICAL OUTER RING WITH TWO ROLLER RETAINMENT RINGS, CAGE (RETAINER) TYPE |
| U | W | CYLINDRICAL ROLLER BEARING, TWO LIP INNER RING, TWO LIP OUTER RING, RETAINER (CAGE TYPE) , NON-SEPARABLE |
| U | YM | CYLINDRICAL ROLLER BEARING, TWO LIP INNER RING, ONE LIP OUTER RING WITH ONE ROLLER RETAINMENT RING, FULL COMPLEMENT OF ROLLERS |
| U | YS | CYLINDRICAL ROLLER BEARING, TWO LIP INNER RING, ONE LIP OUTER RING WITH ONE ROLLER RETAINMENT RING, CAGE (RETAINER) TYPE |
| W | . | JOURNAL ROLLER BEARING, WIDE SERIES (200 SERIES ONLY) |
| WIR | . | INNER RING, JOURNAL ROLLER BEARING, WIDE SERIES |
| WOR | . | OUTER RING, JOURNAL ROLLER BEARING, WIDE SERIES |
| WRA | . | ROLLER ASSEMBLY, WIDE SERIES, JOURNAL ROLLER BEARING |
| X | X | ADDITIONAL SUFFIXES AND PREFIXES TO INDICATE SPECIAL OR EXPERIMENTAL CONSTRUCTION OR DETAIL |
