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19:05:35 GMT+0000 (Coordinated Universal Time)
30310-A
Tapered roller bearing
Tapered roller bearings 303, main dimensions acc. to DIN 720, separable
Replaces
30310A, 30310A.F22, 30310A.J42C
Frequently bought together
Main Dimensions & Performance Data
| d | 50 mm | Bore diameter |
| D | 110 mm | Outside diameter |
| B | 27 mm | Width, inner ring |
| C | 23 mm | Width, outer ring |
| T | 29,25 mm | Width, total |
| Cr | 130.000 N | Basic dynamic load rating, radial |
| C0r | 148.000 N | Basic static load rating, radial |
| Cur | 18.100 N | Fatigue load limit, radial |
| nG | 6.800 1/min | Limiting speed |
| nϑr | 4.700 1/min | Thermal speed rating |
| ≈m | 1,266 kg | Weight |
Mounting dimensions
| da max | 65 mm | Maximum diameter of shaft shoulder |
| db min | 60 mm | Minimum diameter of shaft shoulder |
| Da min | 95 mm | Minimum diameter of housing shoulder |
| Da max | 100 mm | Maximum diameter of housing shoulder |
| Db min | 102 mm | Minimum diameter of housing shoulder |
| Ca min | 4 mm | Minimum axial space |
| Cb min | 6 mm | Minimum axial space |
| ra max | 2,5 mm | Maximum fillet radius of shaft |
| rb max | 2 mm | Maximum fillet radius of housing |
Dimensions
| r1, 2 min | 2,5 mm | Minimum chamfer dimension of inner ring back face |
| r3, 4 min | 2 mm | Minimum chamfer dimension of outer ring back face |
| a | 23 mm | Distance between the apexes of the pressure cones |
| d1 | 77,6 mm | Guidance rib diameter of inner ring |
Temperature range
| Tmin | -30 °C | Operating temperature min. |
| Tmax | 120 °C | Operating temperature max. |
Calculation factors
| e | 0,35 | Limiting value of Fa/Fr for the applicability of diff. Values of factors X and Y |
| Y | 1,74 | Dynamic axial load factor |
| Y0 | 0,96 | Static axial load factor |
Additional information
T2FB050 | Comparative designation to ISO 10317 and ISO 355 |
