ISO 7207 ADF angular contact ball bearings
ISO 7207 ADF angular contact ball bearings Product Brochures , 22x8x7 Size (mm) Manufacturing Service . Get Your Free.
| Size (mm) | 22x8x7 |
| Bore Diameter (mm) | 22 |
| Outer Diameter (mm) | 8 |
| Width (mm) | 7 |
| d | 8 mm |
| D | 22 mm |
| B | 7 mm |
| d1 | 12.6 mm |
| d2 | 12.6 mm |
| D1 | 17.4 mm |
| r1,2 – min. | 0.3 mm |
| r3,4 – min. | 0.2 mm |
| a | 7 mm |
| da – min. | 10 mm |
| db – min. | 10 mm |
| Da – max. | 20 mm |
| Db – max. | 20.6 mm |
| ra – max. | 0.3 mm |
| rb – max. | 0.2 mm |
| dn | 13.6 mm |
| Basic dynamic load rating – C | 3.2 kN |
| Basic static load rating – C0 | 1.3 kN |
| Fatigue load limit – Pu | 0.056 kN |
| Limiting speed for grease lubrication | 95000 r/min |
| Limiting speed for oil lubrication | 150000 mm/min |
| Ball – Dw | 3.969 mm |
| Ball – z | 9 |
| Gref | 0.15 cm3 |
| Calculation factor – e | 0.68 |
| Calculation factor – Y2 | 1.41 |
| Calculation factor – Y0 | 0.76 |
| Calculation factor – X2 | 0.67 |
| Calculation factor – Y1 | 0.92 |
| Preload class A – GA | 20 N |
| Preload class B – GB | 40 N |
| Preload class C – GC | 80 N |
| Preload class D – GD | 160 N |
| Calculation factor – f | 1.02 |
| Calculation factor – f1 | 0.99 |
| Calculation factor – f2A | 1 |
| Calculation factor – f2B | 1.02 |
| Calculation factor – f2C | 1.05 |
| Calculation factor – f2D | 1.08 |
| Calculation factor – fHC | 1.02 |
| Preload class A | 32 N/micron |
| Preload class B | 41 N/micron |
| Preload class C | 53 N/micron |
| Preload class D | 71 N/micron |
| r1,2 min. | 0.3 mm |
| r3,4 min. | 0.2 mm |
| da min. | 10 mm |
| db min. | 10 mm |
| Da max. | 20 mm |
| Db max. | 20.6 mm |
| ra max. | 0.3 mm |
| rb max. | 0.2 mm |
| Basic dynamic load rating C | 3.19 kN |
| Basic static load rating C0 | 1.34 kN |
| Fatigue load limit Pu | 0.056 kN |
| Attainable speed for grease lubrication | 95000 r/min |
| Attainable speed for oil-air lubrication | 150000 r/min |
| Ball diameter Dw | 3.969 mm |
| Number of balls z | 9 |
| Reference grease quantity Gref | 0.15 cm³ |
| Preload class A GA | 20 N |
| Static axial stiffness, preload class A | 32 N/µm |
| Preload class B GB | 40 N |
| Static axial stiffness, preload class B | 41 N/µm |
| Preload class C GC | 80 N |
| Static axial stiffness, preload class C | 53 N/µm |
| Preload class D GD | 160 N |
| Static axial stiffness, preload class D | 71 N/µm |
| Calculation factor f | 1.02 |
| Calculation factor f1 | 0.99 |
| Calculation factor f2A | 1 |
| Calculation factor f2B | 1.02 |
| Calculation factor f2C | 1.05 |
| Calculation factor f2D | 1.08 |
| Calculation factor fHC | 1.02 |
| Calculation factor e | 0.68 |
| Calculation factor (single, tandem) Y2 | 0.87 |
| Calculation factor (single, tandem) Y0 | 0.38 |
| Calculation factor (single, tandem) X2 | 0.41 |
| Calculation factor (back-to-back, face-to-face) Y1 | 0.92 |
| Calculation factor (back-to-back, face-to-face) Y2 | 1.41 |
| Calculation factor (back-to-back, face-to-face) Y0 | 0.76 |
| Calculation factor (back-to-back, face-to-face) X2 | 0.67 |
| Mass bearing | 0.011 kg |
Detailed Parameters
parameter：
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