7207 CD/P4A
Precision ball bearing > High precision angular contact ball bearing
7207 CD/P4A - High precision angular contact ball bearing - Precision ball bearing
| Product model | 7207 CD/P4A |
|---|---|
| d | 35 mm |
| D | 72 mm |
| B | 17 mm |
| Limiting speed | 34000 r/min |
| d1 | 46.8mm |
| d2 | 46.8mm |
| D1 | 60.2mm |
| r1,2 | min.1.1mm |
| r3,4 | min.0.3mm |
| a | 15.7mm |
| da | min.42mm |
| db | min.42mm |
| Da | max.65mm |
| Db | max.69.6mm |
| Fillet radius(ra) | max.1mm |
| Fillet radius(rb) | max.0.3mm |
| Fuel injector position(dn) | 49.7mm |
| Pu | 0.915kN |
| Oil and gas lubrication can reach the speed | 20000r/min |
| Contact angle(α) | 15° |
| Ball diameter(Dw) | 11.112mm |
| The number of pages(z) | 13 |
| Reference grease quantity(Gref) | 3.903cm³ |
| Preload level A(GA) | 120N |
| Static axial stiffness of preload level A | 50N/µm |
| Preload class B(GB) | 240N |
| Static axial stiffness of preload class B | 67N/µm |
| Preload level C(GC) | 480N |
| Static axial stiffness of preload level C | 94N/µm |
| Preload level D(GD) | 960N |
| Static axial stiffness of preload level D | 136N/µm |
| Correction factor depends on bearing series and size (f) | 1.05 |
| The correction factor depends on the contact angle(f1) | 1 |
| Correction factor, preload class A(f2A) | 1 |
| Correction factor, preload class B(f2B) | 1.01 |
| Correction factor, preload class C(f2C) | 1.03 |
| Correction factor, preload class D(f2D) | 1.05 |
| Correction factor of hybrid ceramic bearing(fHC) | 1 |
| Calculation coefficient(f0) | 13.9 |
| Weight | 0.28kg |
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7207 CD/P4A / High precision angular contact ball bearing / Precision ball bearing