| ATTACHMENT METHOD | MOUNTING HOLE |
| BODY STYLE | PLAIN, SOLID |
| BORE NOMINAL DIAMETER | 2.875 INCHES BOTH ENDS |
| BORE STYLE | W/COUNTERBORE FIRST END |
| BORE STYLE | W/STEPPED COUNTERBORE SECOND END |
| COUNTERBORE NOMINAL DEPTH | 0.281 INCHES FIRST COUNTERBORE SECOND END |
| COUNTERBORE NOMINAL DEPTH | 0.750 INCHES SECOND COUNTERBORE SECOND END |
| COUNTERBORE NOMINAL DEPTH | 3.188 INCHES COUNTERBORE FIRST END |
| COUNTERBORE NOMINAL DIAMETER | 4.000 INCHES SECOND COUNTERBORE SECOND END |
| COUNTERBORE NOMINAL DIAMETER | 4.125 INCHES COUNTERBORE FIRST END |
| COUNTERBORE NOMINAL DIAMETER | 5.500 INCHES FIRST COUNTERBORE SECOND END |
| FACE NOMINAL WIDTH | 1.125 INCHES |
| HARDNESS RATING | 58.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM TEETH |
| HUB NOMINAL DIAMETER | 4.875 INCHES FIRST END |
| HUB STYLE DESIGNATOR | PLAIN FIRST END |
| MATERIAL DOCUMENT AND CLASSIFICATION | FED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 4620 OVERALL |
| MOUNTING HOLE NOMINAL DIAMETER | 0.562 INCHES AXIALLY THROUGH BODY SECOND END |
| MOUNTING HOLE NOMINAL THREAD SIZE | 0.375 INCHES TRANSVERSELY THROUGH HUB FIRST END |
| MOUNTING HOLE THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) TRANSVERSELY THROUGH HUB FIRST END |
| MOUNTING HOLE TYPE AND QUANTITY | 2 PLAIN AXIALLY THROUGH BODY SECOND END |
| MOUNTING HOLE TYPE AND QUANTITY | 8 THREADED TRANSVERSELY THROUGH HUB FIRST END |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 3.687 INCHES FIRST END |
| NOMINAL OUTSIDE DIAMETER | 9.449 INCHES |
| PITCH DIAMETER | 9.2500 INCHES NOMINAL |
| PRESSURE ANGLE | 20.0000 DEGREES |
| STYLE DESIGNATOR | PROTRUDING HUB |
| SPECIAL FEATURES | SLOTTED COUNTERBORE,SECOND END;0.125 IN WIDE,1.750 IN.FROM END |
| TEETH QUANTITY | 74 |
| TOOTH FORM | STANDARD |