SKF 71912 CE/P4AH1 angular contact ball bearings
Welcome 300 Bore Diameter (mm) to 300x220x38 Size (mm) the SKF 71912 CE/P4AH1 angular contact ball bearings 220 Outer Diameter (mm) online seller.
| Size (mm) | 300x220x38 |
| Bore Diameter (mm) | 300 |
| Outer Diameter (mm) | 220 |
| Width (mm) | 38 |
| d | 220 mm |
| D | 300 mm |
| B | 38 mm |
| d1 | 244.7 mm |
| d2 | 244.7 mm |
| D1 | 275.3 mm |
| b | 3.5 mm |
| C1 | 20.9 mm |
| C2 | 7.1 mm |
| C3 | 5.45 mm |
| r1,2 – min. | 2.1 mm |
| r3,4 – min. | 1 mm |
| a | 54 mm |
| da – min. | 231 mm |
| db – min. | 231 mm |
| Da – max. | 289 mm |
| Db – max. | 295 mm |
| ra – max. | 2 mm |
| rb – max. | 1 mm |
| dn | 251.4 mm |
| Basic dynamic load rating – C | 221 kN |
| Basic static load rating – C0 | 300 kN |
| Fatigue load limit – Pu | 7.8 kN |
| Limiting speed for grease lubrication | 4300 r/min |
| Limiting speed for oil lubrication | 6300 mm/min |
| Ball – Dw | 25.4 mm |
| Ball – z | 29 |
| Gref | 84 cm3 |
| Calculation factor – f0 | 16.5 |
| Preload class A – GA | 850 N |
| Preload class B – GB | 1700 N |
| Preload class C – GC | 3400 N |
| Preload class D – GD | 6800 N |
| Calculation factor – f | 1 |
| Calculation factor – f2A | 1 |
| Calculation factor – f2B | 1.04 |
| Calculation factor – f2C | 1.09 |
| Calculation factor – f2D | 1.15 |
| Calculation factor – fHC | 1 |
| Preload class A | 224 N/micron |
| Preload class B | 306 N/micron |
| Preload class C | 434 N/micron |
| Preload class D | 635 N/micron |
| r1,2 min. | 2.1 mm |
| r3,4 min. | 1 mm |
| da min. | 231 mm |
| db min. | 231 mm |
| Da max. | 289 mm |
| Db max. | 295 mm |
| ra max. | 2 mm |
| rb max. | 1 mm |
| Basic dynamic load rating C | 221 kN |
| Basic static load rating C0 | 300 kN |
| Fatigue load limit Pu | 7.8 kN |
| Attainable speed for grease lubrication | 4300 r/min |
| Attainable speed for oil-air lubrication | 6300 r/min |
| Ball diameter Dw | 25.4 mm |
| Number of balls z | 29 |
| Reference grease quantity Gref | 84 cm³ |
| Preload class A GA | 850 N |
| Static axial stiffness, preload class A | 224 N/µm |
| Preload class B GB | 1700 N |
| Static axial stiffness, preload class B | 306 N/µm |
| Preload class C GC | 3400 N |
| Static axial stiffness, preload class C | 434 N/µm |
| Preload class D GD | 6800 N |
| Static axial stiffness, preload class D | 635 N/µm |
| Calculation factor f | 1.28 |
| Calculation factor f1 | 1 |
| Calculation factor f2A | 1 |
| Calculation factor f2B | 1.04 |
| Calculation factor f2C | 1.09 |
| Calculation factor f2D | 1.15 |
| Calculation factor fHC | 1 |
| Calculation factor f0 | 16.5 |
| Mass bearing | 6.6 kg |
Detailed Parameters
parameter：
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