| Bearing number | 4T-30311D |
| Size (mm) | 55x120x31.5 |
| Bore Diameter (mm) | 55 |
| Outer Diameter (mm) | 120 |
| Width (mm) | 31,5 |
| d | 55 mm |
| D | 120 mm |
| T | 31,5 mm |
| B | 29 mm |
| C | 21 mm |
| ra1 max. | 2 mm |
| a | 38 mm |
| r min. | 2,5 mm |
| r1 min. | 2 mm |
| da min. | 67 mm |
| Da min | 94 mm |
| Da max. | 110 mm |
| db max. | 68 mm |
| Db min. | 113 mm |
| ra max. | 2 mm |
| Sa | 4 mm |
| Sb | 10,5 mm |
| Weight | 1,59 Kg |
| Basic dynamic load rating (C) | 132 kN |
| Basic static load rating (C0) | 154 kN |
| (Grease) Lubrication Speed | 2 900 r/min |
| (Oil) Lubrication Speed | 3 800 r/min |
| Calculation factor (e) | 0,83 |
| Calculation factor (Y0) | 0,4 |
| d1 | 88.5 mm |
| rs min | 2.5 mm |
| r1s min | 2 mm |
| e | 0.83 |
| Y2 | 0.73 |
| Y0 | 0.4 |
| Mass | 1.59 kg |
| ISO 355 reference | T7FB055 |
| Dynamic load, C | 132 kN |
| Rating life coefficient, A2 | 1.4 |
| Static load, C0 | 154 kN |
| Fatigue limit load, Cu | 18.8 kN |
| Nlim (oil) | 3,800 rpm |
| Nlim (grease) | 2,900 rpm |
| Min operating temperature, Tmin | -40 °C |
| Max operating temperature, Tmax | 120 °C |
| Characteristic cage frequency, FTF | 0.42 Hz |
| Characteristic rolling element frequency, BSF | 5.52 Hz |
| Characteristic outer ring frequency, BPF0 | 6.76 Hz |
| Characteristic inner ring frequency, BPFI | 9.24 Hz |
| da max | 68 mm |
| db min | 67 mm |
| Da max | 110 mm |
| Db min | 113 mm |
| Ca min | 4 mm |
| Cb min | 10.5 mm |
| ra max | 2 mm |
| r1a max | 2 mm |
| Category | Roller Bearings |
| Inventory | 0.0 |
| Minimum Buy Quantity | N/A |
| Product Group | B04336 |
