| Name | Value |
|---|---|
| Bearing number | 71921 CD/HCP4AL |
| 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 |
| D1 | 132.7 mm |
| b | 2.3 mm |
| C1 | 10.9 mm |
| C2 | 3.9 mm |
| C3 | 3.2 mm |
| r1,2 | min. - 1.1 mm |
| r3,4 | min. - 0.6 mm |
| a | 26.8 mm |
| da | min. - 111 mm |
| db | min. - 111 mm |
| Da | max. - 139 mm |
| Db | max. - 141 mm |
| ra | max. - 1 mm |
| rb | max. - 0.6 mm |
| dn | 120.6 mm |
| Basic dynamic load rating | C - 61.8 kN |
| Basic static load rating | C0 - 69.5 kN |
| Fatigue load limit | Pu - 2.6 kN |
| Limiting speed for grease lubrication | 10000 r/min |
| Limiting speed for oil lubrication | 16000 mm/min |
| Ball | Dw - 12.7 mm |
| Ball | z - 27 |
| Gref | 11.1 cm3 |
| Calculation factor | f0 - 16.4 |
| Preload class A | GA - 230 N |
| Preload class B | GB - 460 N |
| Preload class C | GC - 920 N |
| Preload class D | GD - 1840 N |
| Calculation factor | f - 1.25 |
| Calculation factor | f1 - 1 |
| Calculation factor | f2A - 1 |
| Calculation factor | f2B - 1.07 |
| Calculation factor | f2C - 1.12 |
| Calculation factor | f2D - 1.18 |
| Calculation factor | fHC - 1.04 |
| Preload class A | 122 N/micron |
| Preload class B | 168 N/micron |
| Preload class C | 239 N/micron |
| Preload class D | 350 N/micron |
| Mass bearing | 0.699 kg |
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