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31318
Tapered roller bearing
Tapered roller bearings 313, main dimensions to DIN ISO 355 / DIN 720, separable, adjusted or in pairs
Preferred product
Main Dimensions & Performance Data
| d | 90 mm | Bore diameter |
| D | 190 mm | Outside diameter |
| B | 43 mm | Width, inner ring |
| C | 30 mm | Width, outer ring |
| T | 46,5 mm | Width, total |
| Cr | 275.000 N | Basic dynamic load rating, radial |
| C0r | 325.000 N | Basic static load rating, radial |
| Cur | 35.500 N | Fatigue load limit, radial |
| nG | 3.700 1/min | Limiting speed |
| nϑr | 2.900 1/min | Thermal speed rating |
| ≈m | 5,386 kg | Weight |
Mounting dimensions
| da max | 109 mm | Maximum diameter of shaft shoulder |
| db min | 104 mm | Minimum diameter of shaft shoulder |
| Da min | 151 mm | Minimum diameter of housing shoulder |
| Da max | 176 mm | Maximum diameter of housing shoulder |
| Db min | 179 mm | Minimum diameter of housing shoulder |
| Ca min | 6 mm | Minimum axial space |
| Cb min | 16,5 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 | 58 mm | Distance between the apexes of the pressure cones |
| d1 | 138,9 mm | Guidance rib diameter of inner ring |
Temperature range
| Tmin | -30 °C | Operating temperature min. |
| Tmax | 120 °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
T7GB090 | Comparative designation to ISO 10317 and ISO 355 |
All
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