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Main Dimensions & Performance Data
| d | 243.682 mm | Bore diameter |
| D | 315.912 mm | Outside diameter |
| B | 31.75 mm | Width, inner ring |
| C | 22.225 mm | Width, outer ring |
| T | 31.75 mm | Width, total |
| Cr | 275,000 N | Basic dynamic load rating, radial |
| C0r | 495,000 N | Basic static load rating, radial |
| Cur | 57,000 N | Fatigue load limit, radial |
| nG | 2,650 1/min | Limiting speed |
| nϑr | 1,210 1/min | Thermal speed rating |
| ≈m | 6.836 kg | Weight |
Mounting dimensions
| da max | 262 mm | Maximum diameter of shaft shoulder |
| db min | 268 mm | Minimum diameter of shaft shoulder |
| Da min | 300 mm | Minimum diameter of housing shoulder |
| Db min | 305 mm | Minimum diameter of housing shoulder |
| Ca min | 4 mm | Minimum axial space |
| Cb min | 9.5 mm | Minimum axial space |
| ra max | 3.6 mm | Maximum fillet radius of shaft |
| rb max | 3.3 mm | Maximum fillet radius of housing |
Dimensions
| r1, 2 min | 3.6 mm | Minimum chamfer dimension of inner ring back face |
| r3, 4 min | 3.3 mm | Minimum chamfer dimension of outer ring back face |
| a | 54 mm | Distance between the apexes of the pressure cones |
| d1 | 280.8 mm | Guidance rib diameter of inner ring |
Temperature range
| Tmin | -30 °C | Operating temperature min. |
| Tmax | 200 °C | Operating temperature max. |
Calculation factors
| e | 0.43 | Limiting value of Fa/Fr for the applicability of diff. Values of factors X and Y |
| Y | 1.39 | Dynamic axial load factor |
| Y0 | 0.77 | Static axial load factor |
Your current product variant
| Tolerance class | ABMA4 | Class 4 (ANSI/ABMA 19.2:2013) |
| Heat treatment | Standard | |
| Cage | Standard | Sheet steel cage, window cage, roller-guided |
| Quality level | XL | X-life |
| Number of rolling element rows | 1 | Single-row design |