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7030.HV.U.J74 - SNR High Precision Angular Contact Ball Bearing
7030.HV.U.J74 - SNR High Precision Angular Contact Ball Bearing
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7030.HV.U.J74 bearing reference breakdown
Below we will break down the 7030.HV.U.J74 bearing reference and provide an explanation for each section provided it can actually be broken down. We can split it into 3 parts the prefix, suffix and body of the item code.
The suffix can be found at the end of the bearing number:
Suffix
U - Universal Single BearingH - 25° Contact Angle
V - Laminated Phenolic Cage Centered On Outer Ring
J74 - Which indicates preloads (Light, Medium, Heavy) for standard range
The body of the bearing reference is what is left after removing the suffix and the prefix:
Body
70 - Extra Light Series30 - 150mm Bore Size
| d (mm) | 150 | D (mm) | 225 | B (mm) | 35 |
| d1 (mm) | 174.2 | D1 (mm) | 200.82 | D2 (mm) | 212.32 |
| a (mm) | 61 | rs min (mm) | 2.1 | r1s min (mm) | 1 |
| f0 | 16.22 | Mass (kg) | 4.16 |
| da min (mm) | 162 | db min (mm) | 162 | Da max (mm) | 213 |
| Db max (mm) | 213 | r1a max (mm) | 1 | ra max (mm) | 2 |
| D6 (mm) | 180 |
| Dynamic load C (kN) | 147 | Static load C0 (kN) | 167 | Fatigue limit load Cu (kN) | 6.8 |
| Nlim (oil) (Tr/min) | 8500 | Nlim (grease) (Tr/min) | 5600 | Axial displacement K Factor | 0.37 |
| Preload level | 7 | Preload value (kN) | 1.9 | Axial rigidity (N/µm) | 483 |
| Radial rigidity (N/µm) | 1020 | Min operating temperature Tmin (°C) | -30 | Max operating temperature Tmax (°C) | 120 |
| Characteristic cage frequency FTF (Hz) | 0.45 | Characteristic rolling element frequency BSF (Hz) | 8.34 | Characteristic outer ring frequency BPF0 (Hz) | 10.26 |
| Characteristic inner ring frequency BPFI (Hz) | 12.74 | Preload level | 7 |
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