| MATERIAL | STEEL OVERALL |
| TEETH QUANTITY | 31 |
| PRESSURE ANGLE | 20.0000 DEGREES |
| STYLE DESIGNATOR | PROTRUDING HUBS |
| PITCH DIAMETER | 3.8750 INCHES NOMINAL |
| NOMINAL OUTSIDE DIAMETER | 4.120 INCHES |
| FACE NOMINAL WIDTH | 0.625 INCHES |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 2.813 INCHES FIRST END |
| 1.150 INCHES SECOND END |
| BORE STYLE | W/STEPPED COUNTERBORE COUNTER BORE, SECOND END |
| BORE NOMINAL DIAMETER | 1.120 INCHES FIRST END |
| COUNTERBORE NOMINAL DEPTH | 1.150 INCHES FIRST COUNTERBORE, SECOND END |
| 1.970 INCHES SECOND COUNTERBORE, SECOND END |
| COUNTERBORE NOMINAL DIAMETER | 1.874 INCHES FIRST COUNTERBORE, SECOND END |
| 1.750 INCHES SECOND COUNTERBORE, SECOND END |
| HUB STYLE DESIGNATOR | 3 STEPS FIRST END |
| 1 STEP SECOND END |
| END NOMINAL LENGTH | 1.060 INCHES FIRST END |
| 0.921 INCHES SECOND END |
| END NOMINAL DIAMETER | 2.332 INCHES FIRST END |
| 2.363 INCHES SECOND END |
| FIRST STEP NOMINAL LENGTH | 0.690 INCHES FIRST END |
| 0.201 INCHES SECOND END |
| FIRST STEP NOMINAL DIAMETER | 2.363 INCHES FIRST END |
| 2.620 INCHES SECOND END |
| SECOND STEP NOMINAL LENGTH | 0.433 INCHES FIRST END |
| SECOND STEP NOMINAL DIAMETER | 2.620 INCHES FIRST END |
| THIRD STEP NOMINAL LENGTH | 0.250 INCHES FIRST END |
| THIRD STEP NOMINAL DIAMETER | 2.780 INCHES FIRST END |
| BODY STYLE | PLAIN, SOLID |
| ATTACHMENT METHOD | MOUNTING HOLE |
| MOUNTING HOLE TYPE AND QUANTITY | 4 THREADED AXIALLY THROUGH HUB, FIRST END |
| MOUNTING HOLE THREAD SERIES DESIGNATOR | UNC AXIALLY THROUGH HUB, FIRST END |
| MOUNTING HOLE NOMINAL THREAD SIZE | 0.313 INCHES AXIALLY THROUGH HUB, FIRST END |
| BOLT HOLE CIRCLE NOMINAL DIAMETER | 1.750 INCHES AXIALLY THROUGH HUB, FIRST END |
| SPECIAL FEATURES | FLANGE BETWEEN GEAR FACE AND 3RD STEP OF 1ST END W/6 EQ SPACED THD HOLES,1/4-28UNF-2B |