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30228-XL
Tapered roller bearing
Tapered roller bearings 302, main dimensions to DIN ISO 355 / DIN 720, separable, adjusted or in pairs
Sostituisce
30228-A
Prodotto preferito
Main Dimensions & Performance Data
| d | 140 mm | Bore diameter |
| D | 250 mm | Outside diameter |
| B | 42 mm | Width, inner ring |
| C | 36 mm | Width, outer ring |
| T | 45,75 mm | Width, total |
| Cr | 490.000 N | Basic dynamic load rating, radial |
| C0r | 560.000 N | Basic static load rating, radial |
| Cur | 76.000 N | Fatigue load limit, radial |
| nG | 3.450 1/min | Limiting speed |
| nϑr | 2.040 1/min | Thermal speed rating |
| ≈m | 8,8 kg | Peso |
Mounting dimensions
| da max | 163 mm | Maximum diameter of shaft shoulder |
| db min | 154 mm | Minimum diameter of shaft shoulder |
| Da min | 219 mm | Minimum diameter of housing shoulder |
| Da max | 236 mm | Maximum diameter of housing shoulder |
| Db min | 234 mm | Minimum diameter of housing shoulder |
| Ca min | 9 mm | Minimum axial space |
| Cb min | 9,5 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 | 48 mm | Distance between the apexes of the pressure cones |
| d1 | 188 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 | 1,38 | Dynamic axial load factor |
| Y0 | 0,76 | Static axial load factor |
Additional information
T4FB140 | Comparative designation to ISO 10317 and ISO 355 |
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