| model | X30307-Y30307R |
| type | bearing |
| Cone Part Number | X30307M |
| Cup Part Number | Y30307RM |
| Metering System | Metric System |
| Bearing Type | Roller |
| Roller Bearing Type | Tapered roller |
| Load Direction | Radial force and axial force |
| Structure | Single Column |
| Seal Type | Open |
| Outer ring type | Flange |
| series | 30307 |
| Inside Diameter | 35 mm |
| Inner Diameter Tolerance | -0.012mm to 0 |
| Outer Diameter | 80 mm |
| Outer Diameter Tolerance | -0.016mm to 0 |
| Cone Width | 21 mm |
| Cone Width | -0.1mm to 0 |
| Cup width | 18 mm |
| Cup Width | -0.15mm to 0 |
| Flange outer diameter (D1) | 85 mm |
| Outer ring flange width (C1) | 4.5 mm |
| Flange bearing width | 9.25 mm |
| Cone back to clearance radius | 2 mm |
| Cup back to cleaning radius | 1.5 mm |
| Tapered Front Backing Diameter | 43.4 mm |
| Tapered backing diameter | 46.5 mm |
| Cup front backing diameter | 78.99 mm |
| Cage cone front clearance | 4.3 mm |
| Cage cone back clearance | 0 mm |
| Effective central location | -5.8 mm |
| Ferrule Material | 51200 Chrome steel |
| Roller material | 51200 Chrome steel |
| Cage Material | steel |
| Dynamic Radial Load | 19620 lbf |
| Static Radial Load | 19372.5 lbf |
| Dynamic Radial Rating (90 million rpm) (C90) | 5085 lbf |
| Dynamic Thrust Rating (90 million rpm) (Ca90) | 2745 lbf |
| Lubricant | Lubricant Added |
| Temperature Range | -30° to 110 °C |