| Belt width | 0.375 in |
| Bore type | Finished with no keyway |
| Bushing | MPB |
| Dimension | 0.31 |
| Face width | 0.56 |
| Flanges | With Flanges |
| Groove profile | XL |
| Hub location | 0.94 |
| Inside hub projection | 0 |
| Material type | Steel |
| Number of grooves | 20 |
| Number of hubs | 1 |
| Number of teeth | 20 |
| O.D. | 1.25 |
| O.D. (in) | 1.253 |
| Outside hub projection | 0.31 |
| Pitch diameter | 1.27 |
| Rim face | 0.5625 |
| RPM upper limit | 19960 |
| Tooth pitch | 1/5 |