| MATERIAL | STEEL COMP 8642 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | FED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| HARDNESS RATING | 34.0 ROCKWELL C MINIMUM AND |
| 38.0 ROCKWELL C MAXIMUM BODY |
| 34.0 ROCKWELL C MINIMUM AND |
| 38.0 ROCKWELL C MAXIMUM TEETH |
| TEETH QUANTITY | 37 |
| TOOTH FORM | STANDARD |
| PRESSURE ANGLE | 20.0000 DEGREES |
| STYLE DESIGNATOR | ONE PROTRUDING HUB, ONE RECESSED HUB |
| PITCH DIAMETER | 5.0627 INCHES NOMINAL |
| NOMINAL OUTSIDE DIAMETER | 5.308 INCHES |
| FACE NOMINAL WIDTH | 2.000 INCHES |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.187 INCHES FIRST END |
| NOMINAL DISTANCE BETWEEN BODY FACE AND RECESSED HUB END | 0.500 INCHES SECOND END |
| BORE STYLE | W/ KEYWAY BOTH ENDS |
| BORE NOMINAL DIAMETER | 1.375 INCHES BOTH ENDS |
| KEYWAY NOMINAL WIDTH | 0.314 INCHES BOTH ENDS |
| NOMINAL DISTANCE FROM BORE CENTER TO KEYWAY BOTTOM | 0.925 INCHES BOTH ENDS |
| HUB STYLE DESIGNATOR | PLAIN BOTH ENDS |
| HUB NOMINAL DIAMETER | 2.750 INCHES BOTH ENDS |
| BODY STYLE | WEBBED, OFFSET, SOLID |
| ATTACHMENT METHOD | MOUNTING HOLE |
| MOUNTING HOLE TYPE AND QUANTITY | 2 THREADED AXIALLY THROUGH HUB, FIRST END |
| MOUNTING HOLE THREAD SERIES DESIGNATOR | UNF AXIALLY THROUGH HUB, FIRST END |
| MOUNTING HOLE NOMINAL THREAD SIZE | 0.375 INCHES AXIALLY THROUGH HUB, FIRST END |
| THE MANUFACTURERS DATA | |
| MANUFACTURERS CODE | 39VG9 |
| DESIGN CONTROL REFERENCE | 8042976 |