| Prefix | Suffix | Definition |
| . | 1 | ABEC-1 TOLERANCES. |
| . | 3 | ABEC-3 TOLERANCES. |
| . | 5 | ABEC-5 TOLERANCES. |
| . | 7 | ABEC-7 TOLERANCES. |
| . | DB | PAIR OF BEARINGS GROUND FOR DUPLEX MOUNTING BACK-TO-BACK. |
| . | DF | PAIR OF BEARINGS GROUND FOR DUPLEX MOUNTING FACE-TO-FACE. |
| . | DT | PAIR OF BEARINGS GROUND FOR DUPLEX MOUNTING IN TANDEM. |
| . | L | LIGHT PRELOAD, ANGULAR CONTACT TYPE BALL BEARING. |
| . | L | LOOSE END PLAY, RADIAL TYPE BALL BEARING. |
| . | L2 | EXTRA LOOSE FIT-UP, SINGLE-ROW, RADIAL. |
| . | LI | LOOSE FIT-UP, SINGLE-ROW, RADIAL. |
| . | LR | LOOSE RADIAL PLAY, ANNULAR BALL BEARING. |
| . | MR | MEDIUM RADIAL PLAY, ANNULAR BALL BEARING. |
| . | N | EXTRA LOOSE END PLAY, RADIAL TYPE ANNULAR BALL BEARING. |
| . | R | RETAINING RING FOR REAR WHEEL BEARING. |
| . | S | SPECIAL END PLAY, RADIAL TYPE ANNULAR BALL BEARING. |
| . | T | HEAVY PRELOAD, ANGULAR CONTACT TYPE ANNULAR BALL BEARING. |
| . | T | TIGHT END PLAY, RADIAL TYPE ANNULAR BALL BEARING. |
| . | TL | TIGHT FIT-UP, SINGLE-ROW, RADIAL. |
| . | X | MEDIUM PRELOAD, ANGULAR CONTACT TYPE ANNULAR BALL BEARING. |
| . | X | STANDARD END PLAY, RADIAL TYPE ANNULAR BALL BEARING. |
| . | XR | STANDARD RADIAL PLAY, ANNULAR BALL BEARING. |
| 4 | . | SNAP RING. |
| 7 | . | 1 SHIELD. |
| 77 | . | 2 SHIELDS. |
| 8 | . | ONE SEAL . |
| 88 | . | TWO SEALS. |
| 9 | . | ONE SYNTHETIC CONTACT SEAL . |
| 9090 | . | FRONT WHEEL BEARING, COMPLETE. |
| 9095 | . | INNER RING ., (CONE) ONLY, FRONT WHEEL BEARING. |
| 9096 | . | OUTER RING (CUP) ONLY, FRONT WHEEL BEARING. |
| 9097 | . | RETAINER AND BALL ASSEMBLY ONLY, FRONT WHEEL BEARING. |
| 99 | . | TWO SYNTHETIC CONTACT SEALS. |
| CB | . | CLUTCH BEARING. |
| CB | C | CLUTCH BEARING AND CARRIER ASSEMBLY. |
| G | . | SPECIAL BEARING (E.G. G-5111) . |
| PB | . | DIRECT MOUNTED BALL BEARING PILLOW BLOCK. |
| RW | . | REAR WHEEL BEARING. |
| SA | . | SELF ALIGNING PILLOW BLOCK. |
| TR | . | PRECISION TROLLEY WHEEL (E.G. TR-7) . |
| WC | . | WIDE CUP TYPE SEALED ANNULAR BALL BEARING. |
