| MATERIAL | STEEL COMP 4340 OVERALL |
| HARDNESS RATING | 35.0 ROCKWELL C MINIMUM AND |
| 38.0 ROCKWELL C MAXIMUM OVERALL |
| TEETH QUANTITY | 39 |
| TOOTH FORM | STANDARD |
| PRESSURE ANGLE | 20.0000 DEGREES |
| PRECISION CLASSIFICATION | QUALITY NUMBER 11 |
| BACKLASH DESIGNATION | GRADE C |
| STYLE DESIGNATOR | ONE PROTRUDING HUB, ONE RECESSED HUB |
| PITCH DIAMETER | 3.2500 INCHES NOMINAL |
| NOMINAL OUTSIDE DIAMETER | 3.414 INCHES |
| FACE NOMINAL WIDTH | 0.875 INCHES |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.171 INCHES FIRST END |
| NOMINAL DISTANCE BETWEEN BODY FACE AND RECESSED HUB END | 0.300 INCHES SECOND END |
| BORE STYLE | INVOLUTE SPLINE SECOND END |
| BORE NOMINAL DIAMETER | 0.750 INCHES BOTH ENDS |
| SPLINE QUANTITY | 11 BOTH ENDS |
| SPLINE PITCH DIAMETER | 0.6875 INCHES NOMINAL BOTH ENDS |
| HUB STYLE DESIGNATOR | 1 STEP FIRST END |
| PLAIN SECOND END |
| HUB NOMINAL DIAMETER | 0.938 INCHES SECOND END |
| END NOMINAL LENGTH | 0.031 INCHES FIRST END |
| END NOMINAL DIAMETER | 1.125 INCHES FIRST END |
| FIRST STEP NOMINAL LENGTH | 0.140 INCHES FIRST END |
| FIRST STEP NOMINAL DIAMETER | 1.500 INCHES FIRST END |
| BODY STYLE | WEBBED, OFFSET, SOLID |
| ATTACHMENT METHOD | MOUNTING HOLE |
| MOUNTING HOLE TYPE AND QUANTITY | 2 PLAIN AXIALLY THROUGH BODY, FIRST END |
| MOUNTING HOLE NOMINAL DIAMETER | 0.125 INCHES AXIALLY THROUGH BODY, FIRST END |
| SPECIAL FEATURES | COUNT ERBORE FIRST END; 0.795 IN. DIA,0.316 IN. DEEP |