| Name | Value |
|---|---|
| Bearing number | 71811 ACD/HCP4 |
| Size (mm) | 55x72x9 |
| Brand | MBY |
| Bore Diameter (mm) | 55 |
| Outer Diameter (mm) | 72 |
| Width (mm) | 9 |
| Name | Value |
|---|---|
| d | 55 mm |
| D | 72 mm |
| B | 9 mm |
| d1 | 60.7 mm |
| d2 | 60.7 mm |
| D1 | 66.5 mm |
| r1,2 | min. - 0.3 mm |
| r3,4 | min. - 0.15 mm |
| a | 19.3 mm |
| da | min. - 57 mm |
| db | min. - 57 mm |
| Da | max. - 70 mm |
| Db | max. - 71.2 mm |
| ra | max. - 0.3 mm |
| rb | max. - 0.15 mm |
| dn | 61.3 mm |
| Basic dynamic load rating | C - 9.6 kN |
| Basic static load rating | C0 - 10.2 kN |
| Fatigue load limit | Pu - 0.43 kN |
| Limiting speed for grease lubrication | 19000 r/min |
| Limiting speed for oil lubrication | 30000 mm/min |
| Ball | Dw - 4.762 mm |
| Ball | z - 29 |
| Gref | 0.88 cm3 |
| Calculation factor | e - 0.68 |
| Calculation factor | Y2 - 0.87 |
| Calculation factor | Y0 - 0.38 |
| Calculation factor | X2 - 0.41 |
| Calculation factor | Y1 - 0.92 |
| Calculation factor | Y2 - 1.41 |
| Calculation factor | Y0 - 0.76 |
| Calculation factor | X2 - 0.67 |
| Preload class A | GA - 87 N |
| Preload class B | GB - 260 N |
| Preload class C | GC - 520 N |
| Calculation factor | f - 1.27 |
| Calculation factor | f1 - 0.97 |
| Calculation factor | f2A - 1 |
| Calculation factor | f2B - 1.09 |
| Calculation factor | f2C - 1.17 |
| Calculation factor | fHC - 1.02 |
| Preload class A | 138 N/micron |
| Preload class B | 217 N/micron |
| Preload class C | 298 N/micron |
| Mass bearing | 0.073 kg |
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