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7903UCG/GNP42U3G - NTN High Precision Angular Contact Ball Bearing
7903UCG/GNP42U3G - NTN High Precision Angular Contact Ball Bearing
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7903UCG/GNP42U3G bearing reference breakdown
Below we will break down the 7903UCG/GNP42U3G 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 body of the bearing reference is what is left after removing the suffix and the prefix:
Body
79 - Ultra Light Series03 - 17mm Bore Size
| d (mm) | 17 | D (mm) | 30 | B (mm) | 7 |
| d1 (mm) | 21.3 | d2 (mm) | 20.3 | D1 (mm) | 25.7 |
| D2 (mm) | 27.8 | a (mm) | 6.7 | rs min (mm) | 0.3 |
| r1s min (mm) | 0.15 | f0 | 14.8 | Mass (kg) | 0.02 |
| da min (mm) | 19.5 | Da max (mm) | 27.5 | Db max (mm) | 28.8 |
| r1a max (mm) | 0.15 | ra max (mm) | 0.3 | D6 (mm) | 21.5 |
| Dynamic load C (kN) | 5.35 | Static load C0 (kN) | 3.2 | Nlim (oil) (Tr/min) | 79800 |
| Nlim (grease) (Tr/min) | 49900 | Preload value (kN) | 0.029 | Axial rigidity (N/µm) | 25.4 |
| Radial rigidity (N/µm) | 137.7 | Min operating temperature Tmin (°C) | -20 | Max operating temperature Tmax (°C) | 120 |
| Characteristic cage frequency FTF (Hz) | 0.42 | Characteristic rolling element frequency BSF (Hz) | 5.72 | Characteristic outer ring frequency BPF0 (Hz) | 5.85 |
| Characteristic inner ring frequency BPFI (Hz) | 8.15 |
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