71920 CE/HCP4A
Precision ball bearing > High precision angular contact ball bearing
71920 CE/HCP4A - High precision angular contact ball bearing - Precision ball bearing
| Product model | 71920 CE/HCP4A |
|---|---|
| d | 100 mm |
| D | 140 mm |
| B | 20 mm |
| Limiting speed | 24000 r/min |
| d1 | 112.4mm |
| d2 | 109mm |
| D1 | 127.51mm |
| r1,2 | min.1.1mm |
| r3,4 | min.0.6mm |
| a | 26mm |
| da | min.106mm |
| db | min.103.2mm |
| Da | max.134mm |
| Db | max.136.8mm |
| Fillet radius(ra) | max.1mm |
| Fillet radius(rb) | max.0.6mm |
| Fuel injector position(dn) | 115.4mm |
| Pu | 0.88kN |
| Oil and gas lubrication can reach the speed | 15500r/min |
| Contact angle(α) | 15° |
| Ball diameter(Dw) | 12.7mm |
| The number of pages(z) | 24 |
| Reference grease quantity(Gref) | 10cm³ |
| Preload level A(GA) | 208N |
| Static axial stiffness of preload level A | 81N/µm |
| Preload class B(GB) | 624N |
| Static axial stiffness of preload class B | 129N/µm |
| Preload level C(GC) | 1250N |
| Static axial stiffness of preload level C | 178N/µm |
| Correction factor depends on bearing series and size (f) | 1.18 |
| The correction factor depends on the contact angle(f1) | 1 |
| Correction factor, preload class A(f2A) | 1 |
| Correction factor, preload class B(f2B) | 1.05 |
| Correction factor, preload class C(f2C) | 1.09 |
| Correction factor of hybrid ceramic bearing(fHC) | 1.01 |
| Calculation coefficient(f0) | 8.4 |
| Weight | 0.65kg |
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71920 CE/HCP4A / High precision angular contact ball bearing / Precision ball bearing