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Main Dimensions & Performance Data
| D | 120 mm | Outside diameter |
| C | 21 mm | Width, outer ring |
| ≈m | 0.52 kg | Weight |
Dimensions
| r3, 4 min | 2 mm | Minimum chamfer dimension of outer ring back face |
| Da min | 94 mm | Minimum diameter of housing shoulder |
| Da max | 110 mm | Maximum diameter of housing shoulder |
| Db min | 113 mm | Minimum diameter of housing shoulder |
| rb max | 2 mm | Maximum fillet radius of housing |
| T2 | 31.5 mm | Width, total of outer ring assembled with a master inner subunit |
| E | 89.563 mm | Inside diameter of outer ring back face |
| α | 28.81083 ° | Contact angle |
Temperature range
| Tmin | -30 °C | Operating temperature min. |
| Tmax | 120 °C | Operating temperature max. |
Additional information
T7FB055 | Comparative designation to ISO 10317 and ISO 355 | |
R31311-A | Master inner subunit |
Your current product variant
| Tolerance class | PN | Normal (PN) |
| Heat treatment | Standard | |
| Internal design | Standard | |
| Quality level | Standard | |
| Number of rolling element rows | 1 | Single-row design |