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30328-XL
Tapered roller bearing
Tapered roller bearings 303, main dimensions to DIN ISO 355 / DIN 720, separable, adjusted or in pairs
Replaces
30328
Preferred product
Product information
Main Dimensions & Performance Data
| d | 140 mm | Bore diameter |
| D | 300 mm | Outside diameter |
| B | 62 mm | Width, inner ring |
| C | 53 mm | Width, outer ring |
| T | 67,75 mm | Width, total |
| Cr | 690.000 N | Basic dynamic load rating, radial |
| C0r | 730.000 N | Basic static load rating, radial |
| Cur | 95.000 N | Fatigue load limit, radial |
| nG | 3.000 1/min | Limiting speed |
| nϑr | 2.000 1/min | Thermal speed rating |
| ≈m | 20,07 kg | Weight |
Mounting dimensions
| da max | 176 mm | Maximum diameter of shaft shoulder |
| db min | 158 mm | Minimum diameter of shaft shoulder |
| Da min | 255 mm | Minimum diameter of housing shoulder |
| Da max | 282 mm | Maximum diameter of housing shoulder |
| Db min | 273 mm | Minimum diameter of housing shoulder |
| Ca min | 8 mm | Minimum axial space |
| Cb min | 14,5 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 | 52 mm | Distance between the apexes of the pressure cones |
| d1 | 204 mm | Guidance rib diameter of inner ring |
Temperature range
| Tmin | -30 °C | Operating temperature min. |
| Tmax | 200 °C | Operating temperature max. |
Calculation factors
| e | 0,28 | Limiting value of Fa/Fr for the applicability of diff. Values of factors X and Y |
| Y | 2,18 | Dynamic axial load factor |
| Y0 | 1,2 | Static axial load factor |
Additional information
T2GB140 | Comparative designation to ISO 10317 and ISO 355 |