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30207-A
Tapered roller bearing
Tapered roller bearings 302, main dimensions to DIN ISO 355 / DIN 720, separable, adjusted or in pairs
Replaces
30207A, 30207A.F21, 30207A.F22, 30207A.J42A
Product information
Metric
Imperial
Main Dimensions & Performance Data
| d | 35 mm | Bore diameter |
| D | 72 mm | Outside diameter |
| B | 17 mm | Width, inner ring |
| C | 15 mm | Width, outer ring |
| T | 18.25 mm | Width, total |
| Cr | 54,000 N | Basic dynamic load rating, radial |
| C0r | 59,000 N | Basic static load rating, radial |
| Cur | 6,900 N | Fatigue load limit, radial |
| nG | 10,700 1/min | Limiting speed |
| nϑr | 6,400 1/min | Thermal speed rating |
| ≈m | 0.321 kg | Weight |
Mounting dimensions
| da max | 44 mm | Maximum diameter of shaft shoulder |
| db min | 42 mm | Minimum diameter of shaft shoulder |
| Da min | 62 mm | Minimum diameter of housing shoulder |
| Da max | 65 mm | Maximum diameter of housing shoulder |
| Db min | 67 mm | Minimum diameter of housing shoulder |
| Ca min | 3 mm | Minimum axial space |
| Cb min | 3 mm | Minimum axial space |
| ra max | 1.5 mm | Maximum fillet radius of shaft |
| rb max | 1.5 mm | Maximum fillet radius of housing |
Dimensions
| r1, 2 min | 1.5 mm | Minimum chamfer dimension of inner ring back face |
| r3, 4 min | 1.5 mm | Minimum chamfer dimension of outer ring back face |
| a | 15 mm | Distance between the apexes of the pressure cones |
| d1 | 52.65 mm | Guidance rib diameter of inner ring |
Temperature range
| Tmin | -30 °C | Operating temperature min. |
| Tmax | 120 °C | Operating temperature max. |
Calculation factors
| e | 0.37 | Limiting value of Fa/Fr for the applicability of diff. Values of factors X and Y |
| Y | 1.6 | Dynamic axial load factor |
| Y0 | 0.88 | Static axial load factor |
Additional information
T3DB035 | Comparative designation to ISO 10317 and ISO 355 |