Bore1"Chain Size#40Hub Diameter3-1/4 inKeyway Size1/4 x 1/8 inMaterialCarbon SteelO.D.4.26 inPitch40Pitch Diameter3.989 inScrew Size5/16 inTeeth25TypeFinished Bore Type B
| Bore | 1" |
| Chain Size | #40 |
| Hub Diameter | 3-1/4 in |
| Keyway Size | 1/4 x 1/8 in |
| Material | Carbon Steel |
| O.D. | 4.26 in |
| Pitch | 40 |
| Pitch Diameter | 3.989 in |
| Screw Size | 5/16 in |
| Teeth | 25 |
| Type | Finished Bore Type B |