| MATERIAL | STEEL COMP 4140 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD SINGLE MATERIAL RESPONSE AND |
| AISI/SAE 4140 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| HARDNESS RATING | 24.0 ROCKWELL C MINIMUM AND |
| 29.0 ROCKWELL C MAXIMUM OVERALL |
| TEETH QUANTITY | 113 |
| TOOTH FORM | STANDARD |
| PRESSURE ANGLE | 20.0000 DEGREES |
| STYLE DESIGNATOR | ONE PROTRUDING HUB, ONE RECESSED HUB |
| PITCH DIAMETER | 15.4617 INCHES NOMINAL |
| NOMINAL OUTSIDE DIAMETER | 15.711 INCHES |
| FACE NOMINAL WIDTH | 2.000 INCHES |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 2.560 INCHES FIRST END |
| NOMINAL DISTANCE BETWEEN BODY FACE AND RECESSED HUB END | 0.375 INCHES SECOND END |
| BORE STYLE | W/COUNTERBORE COUNTER BORE, SECOND END |
| BORE NOMINAL DIAMETER | 5.001 INCHES COUNTER BORE, SECOND END |
| COUNTERBORE NOMINAL DEPTH | 0.790 INCHES COUNTER BORE, SECOND END |
| COUNTERBORE NOMINAL DIAMETER | 6.376 INCHES COUNTER BORE, SECOND END |
| HUB STYLE DESIGNATOR | PLAIN BOTH ENDS |
| HUB NOMINAL DIAMETER | 6.375 INCHES FIRST END |
| 7.875 INCHES SECOND END |
| BODY STYLE | PLAIN, WITH LIGHTENING HOLES |
| FURNISHED ITEMS AND QUANTITY | 1 EXTERNALLY LUBRICATED BEARING |