| 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 | 265.0 BRINELL STANDARD MINIMUM AND |
| 321.0 BRINELL STANDARD MAXIMUM OVERALL |
| TEETH QUANTITY | 26 |
| TEETH TYPE | SINGLE HELIX |
| TOOTH FORM | SPECIAL |
| TOOTH DIRECTION | RIGHT |
| PRESSURE ANGLE | 20.0000 DEGREES |
| HELIX ANGLE | 14.9167 DEGREES |
| STYLE DESIGNATOR | PROTRUDING HUB |
| PITCH DIAMETER | 2.6000 INCHES NOMINAL |
| NOMINAL OUTSIDE DIAMETER | 2.7670 INCHES |
| FACE NOMINAL WIDTH | 1.312 INCHES |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.438 INCHES FIRST END |
| BORE STYLE | W/ KEYWAY BOTH ENDS |
| BORE NOMINAL DIAMETER | 1.250 INCHES BOTH ENDS |
| KEYWAY NOMINAL WIDTH | 0.250 INCHES BOTH ENDS |
| NOMINAL DISTANCE FROM BORE CENTER TO KEYWAY BOTTOM | 0.750 INCHES BOTH ENDS |
| HUB STYLE DESIGNATOR | 1 GROOVE FIRST END |
| HUB NOMINAL DIAMETER | 2.000 INCHES FIRST END |
| FIRST GROOVE NOMINAL WIDTH | 0.937 INCHES FIRST END |
| FIRST GROOVE NOMINAL DIAMETER | 1.750 INCHES FIRST END |
| NOMINAL DISTANCE FROM END TO FIRST GROOVE | 0.165 INCHES FIRST END |
| BODY STYLE | PLAIN, SOLID |
| ATTACHMENT METHOD | MOUNTING HOLE |
| MOUNTING HOLE TYPE AND QUANTITY | 1 THREADED TRANSVERSELY THROUGH HUB, FIRST END |
| MOUNTING HOLE THREAD SERIES DESIGNATOR | UNC TRANSVERSELY THROUGH HUB, FIRST END |
| MOUNTING HOLE NOMINAL THREAD SIZE | 0.250 INCHES TRANSVERSELY THROUGH HUB, FIRST END |
| FURNISHED ITEMS AND QUANTITY | 1 SETSCREW |
| SPECIAL FEATURES | MTG HOLE 90 DEGS FROMKEYWAY,CENTERED IN GROOVE |