| Part Number | MB544DD |
| Standard Reference | MS21428-44 |
| System of Measurement | Inch |
| Bore Dia | 1.8125″ |
| Bore Dia Tolerance | -0.0008″ to 0″ |
| Outer Dia | 2.25″ |
| Outer Dia Tolerance | -0.0007″ to 0″ |
| Ring Width Outer Height | 0.25″ |
| Ring Width Outer Height Tolerance | -0.005″ to 0″ |
| Ring Width Inner Width | 0.281″ |
| Ring Width Inner Width Tolerance | -0.0025″ to 0″ |
| Ball Complement No | 51 |
| Ball Complement Dia | 1/8″ |
| Ring Shoulder Outer | 2.109″ |
| Ring Shoulder Inner | 1.98″ |
| Ring Chamfer Outer | 0.015″ |
| Ring Chamfer Outer Tolerance | 0″ to 0.015″ |
| Ring Chamfer Inner | 0.015″ |
| Ring Chamfer Inner Tolerance | 0″ to 0.015″ |
| Radial Internal Clearance | 0.0001″ to 0.0005″ |
| Static Radial Load | 7980 lbs |
| Static Thrust Load | 3600 lbs |
| Dynamic Radial Ring Inner Load | 2300 lbs |
| Dynamic Radial Ring Outer Load | 2220 lbs |
| Max Starting Torque | 6 oz-in |
| Weight | 0.11 lbs |
