| DISTANCE FROM HUB END TO FLANGE END | 0.366 INCHES MINIMUM AND 0.372 INCHES MAXIMUM BOTH ENDS |
| DRILLED HOLE DIAMETER | 0.422 INCHES NOMINAL |
| ASA STANDARD CHAIN NUMBER | 40 |
| BOLT CIRCLE DIAMETER | 3.750 INCHES NOMINAL |
| BORE DIAMETER | 0.843 INCHES NOMINAL |
| BORE LENGTH | 0.375 INCHES NOMINAL |
| BORE TYPE | STRAIGHT |
| COUNTERBORE DEPTH | 0.185 INCHES MINIMUM AND 0.190 INCHES MAXIMUM |
| COUNTERBORE DIAMETER | 2.188 INCHES MINIMUM AND 2.190 INCHES MAXIMUM |
| COUNTERBORE LOCATION | AA END OR BB END |
| DESIGN FORM | WEBBED |
| FURNISHED ITEMS | COUNTERBORE AND LIGHTENING HOLE |
| FACE WIDTH | 0.641 INCHES MINIMUM AND 0.647 INCHES MAXIMUM |
| HARDNESS RATING TEST METHOD | ROCKWELL |
| HOLE LOCATION | LOCATED IN HUB SECTION OF SPROCKET |
| HUB OUTSIDE DIAMETER | 2.750 INCHES NOMINAL BOTH ENDS |
| OUTSIDE DIAMETER | 5.780 INCHES NOMINAL |
| OVERALL LENGTH | 1.007 INCHES MINIMUM AND 1.013 INCHES MAXIMUM |
| MATERIAL | IRON CAST |
| METALLIC HARDNESS RATING AND LOCATION | 11.0 ROCKWELL C MINIMUM BODY |
| PITCH DIAMETER | 5.737 INCHES NOMINAL |
| PROTRUDING HUB CHARACTERISTIC | PLAIN |
| SECURING HOLE QUANTITY | 3 |
| SECURING LOCATION | AA END |
| SECURING METHOD | DRILLED HOLE |
| STYLE DESIGNATOR | WEBBED OR SPOKED |
| TEETH QUANTITY PER ROW | 36 |
| TEETH ROW QUANTITY | 1 |
| TEETH HARDNESS RATING | 11.0 ROCKWELL C MINIMUM AND 21.0 ROCKWELL C MAXIMUM |
| TOOTH PITCH | 0.500 INCHES NOMINAL |