| ATTACHMENT METHOD | MOUNTING HOLE |
| BOLT HOLE CIRCLE NOMINAL DIAMETER | 19.875 INCHES AXIALLY THROUGH HUB, FIRST END |
| BORE NOMINAL DIAMETER | 16.885 INCHES BOTH ENDS |
| BORE STYLE | PLAIN BOTH ENDS |
| FACE NOMINAL WIDTH | 0.381 INCHES |
| HARDNESS RATING | 30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL |
| HUB STYLE DESIGNATOR | PLAIN SECOND END |
| HUB NOMINAL DIAMETER | 21.499 INCHES SECOND END |
| MATERIAL | STEEL OVERALL |
| MOUNTING HOLE NOMINAL DIAMETER | 0.562 INCHES AXIALLY THROUGH HUB, FIRST END |
| MOUNTING HOLE TYPE AND QUANTITY | 12 PLAIN AXIALLY THROUGH HUB, FIRST END |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 1.181 INCHES BOTH ENDS |
| NOMINAL OUTSIDE DIAMETER | 22.3120 INCHES |
| NOMINAL OVERALL LENGTH | 1.562 INCHES |
| PRESSURE ANGLE | 20.0000 DEGREES |
| STYLE DESIGNATOR | SOLID BACK RING, PROTRUDING HUB, RECESSED HUB |
| TEETH QUANTITY | 170 |
| TEETH TYPE | SPUR |
| TOOTH FORM | STANDARD |