| Name | Value |
|---|---|
| Bearing number | S71921 ACD/P4A |
| Size (mm) | 105x145x20 |
| Brand | MBY |
| Bore Diameter (mm) | 105 |
| Outer Diameter (mm) | 145 |
| Width (mm) | 20 |
| Name | Value |
|---|---|
| d | 105 mm |
| D | 145 mm |
| B | 20 mm |
| d1 | 117.3 mm |
| d2 | 117.3 mm |
| D2 | 135.65 mm |
| r1,2 | min. - 1.1 mm |
| r3,4 | min. - 0.6 mm |
| a | 39.3 mm |
| da | min. - 111 mm |
| da | max. - 116.7 mm |
| db | min. - 111 mm |
| db | max. - 116.7 mm |
| Da | max. - 139 mm |
| Db | max. - 141 mm |
| ra | max. - 1 mm |
| rb | max. - 0.6 mm |
| Basic dynamic load rating | C - 57.2 kN |
| Basic static load rating | C0 - 65.5 kN |
| Fatigue load limit | Pu - 2.5 kN |
| Limiting speed for grease lubrication | 7500 r/min |
| Ball | Dw - 12.7 mm |
| Ball | z - 27 |
| 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 - 360 N |
| Preload class B | GB - 720 N |
| Preload class C | GC - 1440 N |
| Preload class D | GD - 2880 N |
| Calculation factor | f - 1.25 |
| Calculation factor | f1 - 0.98 |
| Calculation factor | f2A - 1 |
| Calculation factor | f2B - 1.04 |
| Calculation factor | f2C - 1.08 |
| Calculation factor | f2D - 1.14 |
| Calculation factor | fHC - 1 |
| Preload class A | 263 N/micron |
| Preload class B | 346 N/micron |
| Preload class C | 463 N/micron |
| Preload class D | 633 N/micron |
| Mass bearing | 0.847 kg |
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