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