| MATERIAL | STEEL INNER RING |
| STEEL LOADING GROOVE SIDE |
| COPPER ALLOY OR |
| ALUMINUM ALLOY RETAINER |
| STEEL ROLLER |
| STYLE DESIGNATOR | DOUBLE ROW, CONCAVE ROLLERS, ROLLER SELF-CONTAINED, OUTER AND INNER RACEWAYS CONVEX, NON-SEPARABLE |
| OVERALL WIDTH | 185.0 MILLIMETERS NOMINAL |
| BORE DIAMETER | 530.0 MILLIMETERS NOMINAL |
| OVERALL OUTSIDE DIAMETER | 780.0 MILLIMETERS NOMINAL |
| STANDARD TOLERANCE DESIGNATION | RBEC NO.1 |
| SURFACE FINISH | GROUND |
| RETAINER FABRICATION METHOD | MACHINED |
| INTERNAL FIT-UP DESIGNATION | STANDARD |
| FEATURES PROVIDED | ALIGNING RING |
| SPECIAL FEATURES | OIL HOLE AND OIL GROOVE IN OUTER RING |
| NONDEFINITIVE SPEC/STD DATA | 6 CLASS AND |
| 264 TYPE AND |
| 00 GRADE |
| DEPARTURE FROM CITED DESIGNATOR | AS MODIFIED BY DIM. DATA |
| SPEC/STD CONTROLLING DATA | |
| MANUFACTURERS CODE | 81348 |
| NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | FFB185 |