7001UCG/GNP42 - NTN High Precision Angular Contact Ball Bearing
7001UCG/GNP42 - NTN High Precision Angular Contact Ball Bearing
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7001UCG/GNP42 bearing reference breakdown
Below we will break down the 7001UCG/GNP42 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 - Ultage seriesC - Indicates a contact angle of 15°
G - Indicates a universal bearing
GN - Indicates preloads (Light, Normal, Medium, Heavy)
P42 - Dimensional Accuracy of JIS Class 4, Running Accuracy of JIS Class 2
The body of the bearing reference is what is left after removing the suffix and the prefix:
Body
70 - Extra Light Series01 - 12mm Bore Size
| d (mm) | 12 | D (mm) | 28 | B (mm) | 8 |
| d1 (mm) | 17.9 | d2 (mm) | 16.7 | D1 (mm) | 23.1 |
| D2 (mm) | 25.6 | a (mm) | 6.8 | rs min (mm) | 0.3 |
| r1s min (mm) | 0.15 | f0 | 13.4 | Mass (kg) | 0.02 |
| da min (mm) | 14.5 | Da max (mm) | 25.5 | Db max (mm) | 26.8 |
| r1a max (mm) | 0.15 | ra max (mm) | 0.3 | D6 (mm) | 18.1 |
| Dynamic load C (kN) | 5.8 | Static load C0 (kN) | 2.93 | Nlim (oil) (Tr/min) | 91400 |
| Nlim (grease) (Tr/min) | 57100 | Preload value (kN) | 0.039 | Axial rigidity (N/µm) | 24.8 |
| Radial rigidity (N/µm) | 128.4 | Min operating temperature Tmin (°C) | -20 | Max operating temperature Tmax (°C) | 120 |
| Characteristic cage frequency FTF (Hz) | 0.39 | Characteristic rolling element frequency BSF (Hz) | 4.09 | Characteristic outer ring frequency BPF0 (Hz) | 3.88 |
| Characteristic inner ring frequency BPFI (Hz) | 6.12 |
