| DESIGN FORM | PLAIN |
| TEETH ROW QUANTITY | 1 |
| TEETH QUANTITY PER ROW | 17 |
| TOOTH PITCH | 0.625 INCHES NOMINAL |
| MATERIAL | STEEL |
| MATERIAL DOCUMENT AND CLASSIFICATION | SAE 1040 TO 1045 ASSN STD SINGLE MATERIAL RESPONSE |
| STYLE DESIGNATOR | PLAIN |
| OUTSIDE DIAMETER | 3.720 INCHES NOMINAL |
| OVERALL LENGTH | 2.359 INCHES NOMINAL |
| PITCH DIAMETER | 3.401 INCHES NOMINAL |
| FACE WIDTH | 0.337 INCHES MINIMUM AND |
| 0.349 INCHES MAXIMUM |
| ASA STANDARD CHAIN NUMBER | 50 |
| HARDNESS RATING TEST METHOD | ROCKWELL |
| TEETH HARDNESS RATING | 50.0 ROCKWELL C MINIMUM AND |
| 55.0 ROCKWELL C MAXIMUM |
| METALLIC HARDNESS RATING AND LOCATION | 50.0 ROCKWELL C MINIMUM HUB AND |
| 55.0 ROCKWELL C MAXIMUM HUB |
| BORE TYPE | STRAIGHT |
| BORE DIAMETER | 1.125 INCHES NOMINAL |
| BORE LENGTH | 2.359 INCHES NOMINAL |
| KEYING FACILITY TYPE | KEYWAY |
| QUANTITY | 1 |
| KEYWAY WIDTH | 0.250 INCHES NOMINAL |
| DISTANCE FROM CENTER OF BORE TO BOTTOM OF KEYWAY | 0.688 INCHES NOMINAL |
| PROTRUDING HUB CHARACTERISTIC | PLAIN |
| HUB OUTSIDE DIAMETER | 2.500 INCHES NOMINAL BOTH ENDS |
| FURNISHED ITEMS | KEYING FACILITY |
| DISTANCE FROM HUB END TO FLANGE END | 1.000 INCHES NOMINAL BOTH ENDS |
| SECURING METHOD | THREADED HOLE |
| SECURING LOCATION | AA END |
| SECURING HOLE QUANTITY | 1 |
| THREAD SIZE | 5/16-18 |
| HOLE LOCATION | 90 DEG FROM KEYWAY |