Barrel Diameter1.88 inBolt Circle Diameter2-1/4 inBore Diameter28 mmFlange Diameter2-11/16 inFlange Thickness0.43 inHub Diameter4-3/4 in (Cast Iron)/3 in (Steel)Key IncludedNOKey way size (mm)8 x 3.3KeywayStandardKeyway Size0.31 x 0.13 inNumber of Bolt Holes3Overall Length1-5/16 inScrew Size1/4-20 x 1-3/8 inSuitable For Use WithQD Style Sheaves, Sprockets and PulleysTorque Rating3500 in-lbTypeFinished Bore
| Barrel Diameter | 1.88 in |
| Bolt Circle Diameter | 2-1/4 in |
| Bore Diameter | 28 mm |
| Flange Diameter | 2-11/16 in |
| Flange Thickness | 0.43 in |
| Hub Diameter | 4-3/4 in (Cast Iron)/3 in (Steel) |
| Key Included | NO |
| Key way size (mm) | 8 x 3.3 |
| Keyway | Standard |
| Keyway Size | 0.31 x 0.13 in |
| Number of Bolt Holes | 3 |
| Overall Length | 1-5/16 in |
| Screw Size | 1/4-20 x 1-3/8 in |
| Suitable For Use With | QD Style Sheaves, Sprockets and Pulleys |
| Torque Rating | 3500 in-lb |
| Type | Finished Bore |