| ATTACHMENT METHOD | MOUNTING HOLE |
| BODY STYLE | PLAIN, WITH LIGHTENING HOLES |
| BORE NOMINAL DIAMETER | 0.250 INCHES BOTH ENDS |
| BORE STYLE | PLAIN BOTH ENDS |
| END NOMINAL DIAMETER | 0.4990 INCHES FIRST END |
| END NOMINAL LENGTH | 0.3510 INCHES FIRST END |
| FACE NOMINAL WIDTH | 0.062 INCHES |
| FIRST STEP NOMINAL DIAMETER | 2.2500 INCHES FIRST END |
| FIRST STEP NOMINAL LENGTH | 0.0100 INCHES FIRST END |
| HUB STYLE DESIGNATOR | 1 STEP FIRST END |
| MATERIAL | ALUMINUM ALLOY OVERALL |
| PITCH DIAMETER | 2.9370 INCHES NOMINAL |
| MOUNTING HOLE NOMINAL THREAD SIZE | 0.112 INCHES TRANSVERSELY THROUGH HUB FIRST END |
| MOUNTING HOLE THREAD QUANTITY PER INCH | 40 TRANSVERSELY THROUGH HUB FIRST END |
| MOUNTING HOLE THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) TRANSVERSELY THROUGH HUB FIRST END |
| MOUNTING HOLE TYPE AND QUANTITY | 2 THREADED TRANSVERSELY THROUGH HUB FIRST END |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.3610 INCHES FIRST END |
| NOMINAL OUTSIDE DIAMETER | 2.9680 INCHES |
| PRESSURE ANGLE | 20.0000 DEGREES |
| SPECIAL FEATURES | W/ONE 0.125 IN. DIA BY 0.187 IN. LG POST ON FACE OF BB END OF GEAR |
| STYLE DESIGNATOR | PROTRUDING HUB |
| SURFACE TREATMENT | ANODIZE OVERALL |
| TEETH QUANTITY | 188 |
| TOOTH FORM | STANDARD |