| MATERIAL | STEEL COMP 4150 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD SINGLE MATERIAL RESPONSE AND |
| AISI/SAE 4150 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| HARDNESS RATING | 28.0 ROCKWELL C MINIMUM AND |
| 32.0 ROCKWELL C MAXIMUM HUB |
| 52.0 ROCKWELL C MINIMUM AND |
| 56.0 ROCKWELL C MAXIMUM TEETH |
| TEETH QUANTITY | 55 |
| TEETH TYPE | SINGLE HELIX |
| TOOTH FORM | STANDARD |
| TOOTH DIRECTION | RIGHT |
| PRESSURE ANGLE | 30.0000 DEGREES |
| HELIX ANGLE | 15.0000 DEGREES |
| STYLE DESIGNATOR | PROTRUDING HUBS |
| PITCH DIAMETER | 11.3880 INCHES NOMINAL |
| NOMINAL OUTSIDE DIAMETER | 11.708 INCHES |
| FACE NOMINAL WIDTH | 2.000 INCHES |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 1.438 INCHES FIRST END |
| 1.125 INCHES SECOND END |
| BORE STYLE | INVOLUTE SPLINE BOTH ENDS |
| BORE NOMINAL DIAMETER | 3.163 INCHES BOTH ENDS |
| SPLINE QUANTITY | 24 BOTH ENDS |
| SPLINE PITCH DIAMETER | 3.0000 INCHES NOMINAL BOTH ENDS |
| HUB STYLE DESIGNATOR | PLAIN BOTH ENDS |
| HUB NOMINAL DIAMETER | 4.625 INCHES BOTH ENDS |
| BODY STYLE | WEBBED, SOLID |
| ATTACHMENT METHOD | MOUNTING HOLE |
| MOUNTING HOLE TYPE AND QUANTITY | 8 PLAIN AXIALLY THROUGH BODY, FIRST END |
| MOUNTING HOLE NOMINAL DIAMETER | 2.375 INCHES AXIALLY THROUGH BODY, FIRST END |
| BOLT HOLE CIRCLE NOMINAL DIAMETER | 1.000 INCHES AXIALLY THROUGH BODY, FIRST END |
| SPECIAL FEATURES | 1ST END COUNTERBORED,3.187 IN. DIA BY 1.187 IN. DP |