7012 CB/P4A
Precision ball bearing > High precision angular contact ball bearing
7012 CB/P4A - High precision angular contact ball bearing - Precision ball bearing
| Product model | 7012 CB/P4A |
|---|---|
| d | 60 mm |
| D | 95 mm |
| B | 18 mm |
| Limiting speed | 30000 r/min |
| d1 | 73.18mm |
| d2 | 71.65mm |
| D2 | 84.39mm |
| r1,2 | min.1.1mm |
| r3,4 | min.0.6mm |
| a | 19.5mm |
| da | min.66mm |
| db | min.66mm |
| Da | max.89mm |
| Db | max.91.8mm |
| Fillet radius(ra) | max.1mm |
| Fillet radius(rb) | max.0.6mm |
| Fuel injector position(dn) | 74.2mm |
| Pu | 0.51kN |
| Oil and gas lubrication can reach the speed | 19000r/min |
| Contact angle(α) | 15° |
| Ball diameter(Dw) | 6.747mm |
| The number of pages(z) | 28 |
| Reference grease quantity(Gref) | 5.03cm³ |
| Preload level A(GA) | 48N |
| Static axial stiffness of preload level A | 41N/µm |
| Preload class B(GB) | 96N |
| Static axial stiffness of preload class B | 54N/µm |
| Preload level C(GC) | 290N |
| Static axial stiffness of preload level C | 86N/µm |
| Correction factor depends on bearing series and size (f) | 1.06 |
| The correction factor depends on the contact angle(f1) | 1 |
| Correction factor, preload class A(f2A) | 1 |
| Correction factor, preload class B(f2B) | 1.02 |
| Correction factor, preload class C(f2C) | 1.05 |
| Correction factor of hybrid ceramic bearing(fHC) | 1 |
| Calculation coefficient(f0) | 9.7 |
| Weight | 0.45kg |
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7012 CB/P4A / High precision angular contact ball bearing / Precision ball bearing