| DESIGN FORM | PLAIN |
| TEETH ROW QUANTITY | 2 |
| TEETH QUANTITY PER ROW | 15 |
| TOOTH PITCH | 0.750 INCHES NOMINAL |
| MATERIAL | STEEL COMP 4140 |
| MATERIAL DOCUMENT AND CLASSIFICATION | FED STD NO. 66 FED STD SINGLE MATERIAL RESPONSE AND |
| AISI 4140 ASSN STD SINGLE MATERIAL RESPONSE OR |
| FED STD NO. 66 FED STD SINGLE MATERIAL RESPONSE AND |
| SAE 4140 ASSN STD SINGLE MATERIAL RESPONSE |
| STYLE DESIGNATOR | PLAIN |
| OUTSIDE DIAMETER | 3.979 INCHES NOMINAL |
| OVERALL LENGTH | 2.781 INCHES NOMINAL |
| PITCH DIAMETER | 3.607 INCHES NOMINAL |
| FACE WIDTH | 2.240 INCHES NOMINAL |
| SURFACE TREATMENT | NICKEL |
| CENTER TO CENTER DISTANCE BETWEEN TEETH ROWS | 1.796 INCHES NOMINAL |
| ASA STANDARD CHAIN NUMBER | 60 |
| HARDNESS RATING TEST METHOD | ROCKWELL |
| TEETH HARDNESS RATING | 38.0 ROCKWELL C NOMINAL |
| METALLIC HARDNESS RATING AND LOCATION | 38.0 ROCKWELL C NOMINAL HUB |
| BORE TYPE | STRAIGHT |
| BORE DIAMETER | 2.6420 INCHES MINIMUM AND |
| 2.6425 INCHES MAXIMUM |
| BORE LENGTH | 2.781 INCHES NOMINAL |
| PROTRUDING HUB CHARACTERISTIC | PLAIN |
| HUB OUTSIDE DIAMETER | 2.750 INCHES NOMINAL BOTH ENDS |
| DISTANCE FROM HUB END TO FLANGE END | 0.333 INCHES NOMINAL AA END |
| 0.208 INCHES NOMINAL BB END |
| THE MANUFACTURERS DATA | |
| MANUFACTURERS CODE | 98889 |
| DESIGN CONTROL REFERENCE | 12592 |