Barrel Diameter2.81 inBolt Circle Diameter3-5/16 inBore Diameter38 mmFlange Diameter3-7/8 inFlange Thickness0.56 inHub Diameter4-3/4 in (Cast Iron)/4-1/2 in (Steel)Key IncludedNOKey way size (mm)10 x 3.3KeywayStandardKeyway Size0.39 x 0.13 inNumber of Bolt Holes3Overall Length1-15/16 inScrew Size5/16-18 x 2 inSuitable For Use WithQD Style Sheaves, Sprockets and PulleysTorque Rating7000 in-lbTypeFinished Bore
| Barrel Diameter | 2.81 in |
| Bolt Circle Diameter | 3-5/16 in |
| Bore Diameter | 38 mm |
| Flange Diameter | 3-7/8 in |
| Flange Thickness | 0.56 in |
| Hub Diameter | 4-3/4 in (Cast Iron)/4-1/2 in (Steel) |
| Key Included | NO |
| Key way size (mm) | 10 x 3.3 |
| Keyway | Standard |
| Keyway Size | 0.39 x 0.13 in |
| Number of Bolt Holes | 3 |
| Overall Length | 1-15/16 in |
| Screw Size | 5/16-18 x 2 in |
| Suitable For Use With | QD Style Sheaves, Sprockets and Pulleys |
| Torque Rating | 7000 in-lb |
| Type | Finished Bore |