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Main Dimensions & Performance Data
| d | 300 mm | Bore diameter |
| D | 420 mm | Outside diameter |
| B | 76 mm | Width, inner ring |
| C | 57 mm | Width, outer ring |
| T | 76 mm | Width, total |
| Cr | 990,000 N | Basic dynamic load rating, radial |
| C0r | 2,030,000 N | Basic static load rating, radial |
| Cur | 212,000 N | Fatigue load limit, radial |
| nG | 1,510 1/min | Limiting speed |
| nϑr | 810 1/min | Thermal speed rating |
| ≈m | 30.68 kg | Weight |
Mounting dimensions
| da max | 324 mm | Maximum diameter of shaft shoulder |
| db min | 314 mm | Minimum diameter of shaft shoulder |
| Da min | 383 mm | Minimum diameter of housing shoulder |
| Da max | 406 mm | Maximum diameter of housing shoulder |
| Db min | 405 mm | Minimum diameter of housing shoulder |
| Ca min | 12 mm | Minimum axial space |
| Cb min | 19 mm | Minimum axial space |
| ra max | 4 mm | Maximum fillet radius of shaft |
| rb max | 3 mm | Maximum fillet radius of housing |
Dimensions
| r1, 2 min | 4 mm | Minimum chamfer dimension of inner ring back face |
| r3, 4 min | 3 mm | Minimum chamfer dimension of outer ring back face |
| a | 80 mm | Distance between the apexes of the pressure cones |
| d1 | 362 mm | Guidance rib diameter of inner ring |
Temperature range
| Tmin | -30 °C | Operating temperature min. |
| Tmax | 200 °C | Operating temperature max. |
Calculation factors
| e | 0.39 | Limiting value of Fa/Fr for the applicability of diff. Values of factors X and Y |
| Y | 1.52 | Dynamic axial load factor |
| Y0 | 0.84 | Static axial load factor |
Additional information
T3FD300 | Comparative designation to ISO 10317 and ISO 355 |
Your current product variant
| Tolerance class | PN | Normal (ISO 492:2014) |
| Heat treatment | Standard | |
| Cage | Standard | Sheet steel cage, window cage, roller-guided |
| Internal design | Standard | |
| Quality level | 0 | |
| Version code | >A | Not marked on bearing |
| Number of rolling element rows | 1 | Single-row design |