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31321-X-XL
Tapered roller bearing
Tapered roller bearings 313, main dimensions to DIN ISO 355 / DIN 720, separable, adjusted or in pairs
Replaces
31321-X
Main Dimensions & Performance Data
| d | 105 mm | Bore diameter |
| D | 225 mm | Outside diameter |
| B | 53 mm | Width, inner ring |
| C | 36 mm | Width, outer ring |
| T | 58 mm | Width, total |
| Cr | 480.000 N | Basic dynamic load rating, radial |
| C0r | 510.000 N | Basic static load rating, radial |
| Cur | 71.000 N | Fatigue load limit, radial |
| nG | 3.700 1/min | Limiting speed |
| nϑr | 2.440 1/min | Thermal speed rating |
| ≈m | 9,805 kg | Weight |
Mounting dimensions
| da max | 127 mm | Maximum diameter of shaft shoulder |
| db min | 119 mm | Minimum diameter of shaft shoulder |
| Da min | 176 mm | Minimum diameter of housing shoulder |
| Da max | 211 mm | Maximum diameter of housing shoulder |
| Db min | 211 mm | Minimum diameter of housing shoulder |
| Ca min | 7 mm | Minimum axial space |
| Cb min | 22 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 | 70 mm | Distance between the apexes of the pressure cones |
| d1 | 161,9 mm | Guidance rib diameter of inner ring |
Temperature range
| Tmin | -30 °C | Operating temperature min. |
| Tmax | 200 °C | Operating temperature max. |
Calculation factors
| e | 0,83 | Limiting value of Fa/Fr for the applicability of diff. Values of factors X and Y |
| Y | 0,73 | Dynamic axial load factor |
| Y0 | 0,4 | Static axial load factor |
Additional information
T7GB105 | 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 |
| Quality level | XL | X-life |
| Number of rolling element rows | 1 | Single-row design |
Characteristics
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