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Amerika Birleşik Devletleri
18:38:51 GMT+0000 (Coordinated Universal Time)
30248-XL
Tapered roller bearing
Tapered roller bearings 302, main dimensions to DIN ISO 355 / DIN 720, separable, adjusted or in pairs
Ürün bilgisi
Main Dimensions & Performance Data
| d | 240 mm | Bore diameter |
| D | 440 mm | Outside diameter |
| B | 72 mm | Width, inner ring |
| C | 60 mm | Width, outer ring |
| T | 79 mm | Width, total |
| Cr | 1.190.000 N | Basic dynamic load rating, radial |
| C0r | 1.530.000 N | Basic static load rating, radial |
| Cur | 174.000 N | Fatigue load limit, radial |
| nG | 1.980 1/min | Limiting speed |
| nϑr | 1.040 1/min | Thermal speed rating |
| ≈m | 46,8 kg | Ağırlık |
Mounting dimensions
| da max | 285 mm | Maximum diameter of shaft shoulder |
| db min | 257 mm | Minimum diameter of shaft shoulder |
| Da min | 383 mm | Minimum diameter of housing shoulder |
| Da max | 420 mm | Maximum diameter of housing shoulder |
| Db min | 410 mm | Minimum diameter of housing shoulder |
| Ca min | 10 mm | Minimum axial space |
| Cb min | 19 mm | Minimum axial space |
| ra max | 5 mm | Maximum fillet radius of shaft |
| rb max | 4 mm | Maximum fillet radius of housing |
Dimensions
| r1, 2 min | 5 mm | Minimum chamfer dimension of inner ring back face |
| r3, 4 min | 4 mm | Minimum chamfer dimension of outer ring back face |
| a | 76 mm | Distance between the apexes of the pressure cones |
| d1 | 322,5 mm | Guidance rib diameter of inner ring |
Temperature range
| Tmin | -30 °C | Operating temperature min. |
| Tmax | 200 °C | Operating temperature max. |
Calculation factors
| e | 0,36 | Limiting value of Fa/Fr for the applicability of diff. Values of factors X and Y |
| Y | 1,68 | Dynamic axial load factor |
| Y0 | 0,92 | Static axial load factor |