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30303-A
Tapered roller bearing
Tapered roller bearings 303, main dimensions to DIN ISO 355 / DIN 720, separable, adjusted or in pairs
Zastępuje
30303A, 30303A.J42A
Informacje o produkcie
Main Dimensions & Performance Data
| d | 17 mm | Bore diameter |
| D | 47 mm | Outside diameter |
| B | 14 mm | Width, inner ring |
| C | 12 mm | Width, outer ring |
| T | 15,25 mm | Width, total |
| Cr | 27.500 N | Basic dynamic load rating, radial |
| C0r | 24.800 N | Basic static load rating, radial |
| Cur | 2.650 N | Fatigue load limit, radial |
| nG | 17.600 1/min | Limiting speed |
| nϑr | 10.900 1/min | Thermal speed rating |
| ≈m | 125 g | Masa |
Mounting dimensions
| da max | 25 mm | Maximum diameter of shaft shoulder |
| db min | 23 mm | Minimum diameter of shaft shoulder |
| Da min | 40 mm | Minimum diameter of housing shoulder |
| Da max | 41 mm | Maximum diameter of housing shoulder |
| Db min | 42 mm | Minimum diameter of housing shoulder |
| Ca min | 2 mm | Minimum axial space |
| Cb min | 3 mm | Minimum axial space |
| ra max | 1 mm | Maximum fillet radius of shaft |
| rb max | 1 mm | Maximum fillet radius of housing |
Dimensions
| r1, 2 min | 1 mm | Minimum chamfer dimension of inner ring back face |
| r3, 4 min | 1 mm | Minimum chamfer dimension of outer ring back face |
| a | 11 mm | Distance between the apexes of the pressure cones |
| d1 | 31,8 mm | Guidance rib diameter of inner ring |
Temperature range
| Tmin | -30 °C | Operating temperature min. |
| Tmax | 120 °C | Operating temperature max. |
Calculation factors
| e | 0,29 | Limiting value of Fa/Fr for the applicability of diff. Values of factors X and Y |
| Y | 2,11 | Dynamic axial load factor |
| Y0 | 1,16 | Static axial load factor |
Additional information
T2FB017 | Comparative designation to ISO 10317 and ISO 355 |