| Belt Series | Yes |
| Belt Width Maximum | 0.5 Inch | 12.7 Millimeter |
| Bore | 3.9 Inch | 99.06 Millimeter |
| Brand | OPTIBELT |
| Bushing Size | 4L | A | 5L | B |
| Category - BDI | 26111806 |
| EAN | M02316 |
| Harmonized Tariff Code | Pulley |
| Inch - Metric | Sheave - Fixed Pitch |
| Keyway Yes/No | No |
| Keyword String | 2BK45-1 |
| Long Description | 1 Inch | 25.4 Millimeter |
| Manufacturer Item Number | 3.5 Inch | 88.9 Millimeter |
| Manufacturer Name | N/A |
| Manufacturer URL | 1" Bore; 2 Grooves; 4-1/4" Outside Diameter; Finished Bore; 4L | A | 5L | B Belt Series; 3-1/2" Pitch Minimum; 3.9" Pitch Maximum; Keyway |
| Max Bore | Solid Style |
| Minimum Buy Quantity, Minimum Plain Bore | 0 |
| Mounting Method | No Bushing |
| Noun | Transmission |
| Number of Grooves | Finished Bore |
| Other Features | Inch |
| Pitch Diameter Maximum | 4.25 Inch | 107.95 Millimeter |
| Pitch Diameter Minimum | 0.656 Inch | 16.662 Millimeter |
| Product Group - BDI | 2 |
| UNSPSC | 8483.50.90.40 |
| Weight / Kilogram | 4014486343465 |