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7018UCG/GNP42U3G - NTN High Precision Angular Contact Ball Bearing
7018UCG/GNP42U3G - NTN High Precision Angular Contact Ball Bearing
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7018UCG/GNP42U3G bearing reference breakdown
Below we will break down the 7018UCG/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
70 - Extra Light Series18 - 90mm Bore Size
| d (mm) | 90 | D (mm) | 140 | B (mm) | 24 |
| d1 (mm) | 106.9 | d2 (mm) | 103 | D1 (mm) | 123.2 |
| D2 (mm) | 131.1 | a (mm) | 27.5 | rs min (mm) | 1.5 |
| r1s min (mm) | 1 | f0 | 15.7 | Mass (kg) | 1.17 |
| da min (mm) | 98.5 | Da max (mm) | 131.5 | Db max (mm) | 134.5 |
| r1a max (mm) | 1 | ra max (mm) | 1.5 | D6 (mm) | 106.9 |
| Dynamic load C (kN) | 74 | Static load C0 (kN) | 72.5 | Nlim (oil) (Tr/min) | 16300 |
| Nlim (grease) (Tr/min) | 10200 | Preload value (kN) | 0.44 | Axial rigidity (N/µm) | 117.4 |
| Radial rigidity (N/µm) | 675 | Min operating temperature Tmin (°C) | -20 | Max operating temperature Tmax (°C) | 120 |
| Characteristic cage frequency FTF (Hz) | 0.44 | Characteristic rolling element frequency BSF (Hz) | 7.5 | Characteristic outer ring frequency BPF0 (Hz) | 9.17 |
| Characteristic inner ring frequency BPFI (Hz) | 11.83 |
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