| Name | Value |
|---|---|
| Bearing number | 71808 ACD/HCP4 |
| Size (mm) | 40x52x7 |
| Brand | MBY |
| Bore Diameter (mm) | 40 |
| Outer Diameter (mm) | 52 |
| Width (mm) | 7 |
| Name | Value |
|---|---|
| d | 40 mm |
| D | 52 mm |
| B | 7 mm |
| d1 | 44.1 mm |
| d2 | 44.1 mm |
| D1 | 48.1 mm |
| r1,2 | min. - 0.3 mm |
| r3,4 | min. - 0.15 mm |
| a | 14.3 mm |
| da | min. - 42 mm |
| db | min. - 42 mm |
| Da | max. - 50 mm |
| Db | max. - 51.2 mm |
| ra | max. - 0.3 mm |
| rb | max. - 0.15 mm |
| dn | 44.5 mm |
| Basic dynamic load rating | C - 4.5 kN |
| Basic static load rating | C0 - 4.6 kN |
| Fatigue load limit | Pu - 0.196 kN |
| Limiting speed for grease lubrication | 28000 r/min |
| Limiting speed for oil lubrication | 43000 mm/min |
| Ball | Dw - 3.175 mm |
| Ball | z - 29 |
| Gref | 0.31 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 - 40 N |
| Preload class B | GB - 120 N |
| Preload class C | GC - 240 N |
| Calculation factor | f - 1.23 |
| 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 | 93 N/micron |
| Preload class B | 145 N/micron |
| Preload class C | 197 N/micron |
| Mass bearing | 0.029 kg |
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