| MATERIAL | STEEL COMP 8640 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| HARDNESS RATING | 93.0 ROCKWELL B MINIMUM AND |
| 101.0 ROCKWELL B MAXIMUM HUB |
| 45.0 ROCKWELL C MINIMUM AND |
| 50.0 ROCKWELL C MAXIMUM TEETH |
| TEETH QUANTITY | 65 |
| TEETH TYPE | SINGLE HELIX |
| TOOTH FORM | STANDARD |
| TOOTH DIRECTION | RIGHT |
| PRESSURE ANGLE | 20.0000 DEGREES |
| HELIX ANGLE | 15.0000 DEGREES |
| STYLE DESIGNATOR | ONE PROTRUDING HUB, ONE FLUSH HUB |
| PITCH DIAMETER | 8.1250 INCHES NOMINAL |
| NOMINAL OUTSIDE DIAMETER | 8.3650 INCHES |
| FACE NOMINAL WIDTH | 2.000 INCHES |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 1.0310 INCHES FIRST END |
| BORE STYLE | INVOLUTE SPLINE BOTH ENDS |
| BORE NOMINAL DIAMETER | 2.0050 INCHES BOTH ENDS |
| SPLINE QUANTITY | 31 BOTH ENDS |
| SPLINE PITCH DIAMETER | 1.9375 INCHES NOMINAL BOTH ENDS |
| HUB STYLE DESIGNATOR | 1 STEP FIRST END |
| PLAIN SECOND END |
| HUB NOMINAL DIAMETER | 3.3750 INCHES SECOND END |
| END NOMINAL LENGTH | 0.9060 INCHES FIRST END |
| END NOMINAL DIAMETER | 2.7563 INCHES FIRST END |
| FIRST STEP NOMINAL LENGTH | 0.1250 INCHES FIRST END |
| FIRST STEP NOMINAL DIAMETER | 3.3750 INCHES FIRST END |
| BODY STYLE | WEBBED, SOLID |
| THE MANUFACTURERS DATA | |
| MANUFACTURERS CODE | 10001 |
| DESIGN CONTROL REFERENCE | 1608434 |