| ATTACHMENT METHOD | MOUNTING HOLE |
| BODY STYLE | PLAIN, SOLID |
| BOLT HOLE CIRCLE NOMINAL DIAMETER | 17.188 INCHES AXIALLY THROUGH BODY FIRST END |
| BORE NOMINAL DIAMETER | 16.438 INCHES COUNTER BORE SECOND END |
| BORE STYLE | W/COUNTERBORE COUNTER BORE SECOND END |
| COUNTERBORE NOMINAL DIAMETER | 18.002 INCHES COUNTER BORE SECOND END |
| COUNTERBORE NOMINAL DEPTH | 0.500 INCHES COUNTER BORE SECOND END |
| FACE NOMINAL WIDTH | 0.875 INCHES |
| HARDNESS RATING | 40.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM OVERALL |
| PITCH DIAMETER | 19.5000 INCHES NOMINAL |
| MATERIAL | STEEL OVERALL |
| MOUNTING HOLE NOMINAL THREAD SIZE | 0.375 INCHES TRANSVERSELY THROUGH HUB FIRST END |
| MOUNTING HOLE THREAD QUANTITY PER INCH | 24 AXIALLY THROUGH BODY FIRST END |
| MOUNTING HOLE THREAD SERIES DESIGNATOR | UNF AXIALLY THROUGH BODY FIRST END |
| MOUNTING HOLE TYPE AND QUANTITY | 12 THREADED AXIALLY THROUGH BODY FIRST END |
| NOMINAL OUTSIDE DIAMETER | 19.896 INCHES |
| PRESSURE ANGLE | 20.0000 DEGREES |
| STYLE DESIGNATOR | HUBLESS |
| TEETH QUANTITY | 117 |
| TOOTH FORM | STUB |