NTN R08A58V cylindrical roller bearings
NTN R08A58V cylindrical roller bearings, Units and Housings CAD models , Manufacturing 50 mm d Service . Get 12 mm B Your Free.
| d | 50 mm |
| D | 72 mm |
| B | 12 mm |
| d1 | 56.7 mm |
| d2 | 54.9 mm |
| D1 | 65.3 mm |
| K | 0.5 mm |
| C1 | 3.53 mm |
| r1,2 min. | 0.6 mm |
| r3,4 min. | 0.3 mm |
| a | 14.7 mm |
| da min. | 53.2 mm |
| db min. | 52 mm |
| Da max. | 68.8 mm |
| Db max. | 70 mm |
| ra max. | 0.6 mm |
| rb max. | 0.3 mm |
| dn | 58.4 mm |
| Basic dynamic load rating C | 12.7 kN |
| Basic static load rating C0 | 8.65 kN |
| Fatigue load limit Pu | 0.365 kN |
| Attainable speed for grease lubrication | 32000 r/min |
| Attainable speed for oil-air lubrication | 48000 r/min |
| Ball diameter Dw | 7.144 mm |
| Number of balls z | 21 |
| Reference grease quantity Gref | 1.7 cm³ |
| Preload class A GA | 69 N |
| Static axial stiffness, preload class A | 42 N/µm |
| Preload class B GB | 210 N |
| Static axial stiffness, preload class B | 68 N/µm |
| Preload class C GC | 410 N |
| Static axial stiffness, preload class C | 92 N/µm |
| Calculation factor f | 1.15 |
| Calculation factor f1 | 1 |
| Calculation factor f2A | 1 |
| Calculation factor f2B | 1.05 |
| Calculation factor f2C | 1.09 |
| Calculation factor fHC | 1.01 |
| Calculation factor f0 | 8.4 |
| Mass bearing | 0.11 kg |
Detailed Parameters
parameter：
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