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4T-47487/47420 - NTN Single Row Taper Roller Bearing
4T-47487/47420 - NTN Single Row Taper Roller Bearing
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4T-47487/47420 bearing reference breakdown
Below we will break down the 4T-47487/47420 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 prefix can be found at the beginning of the bearing code:
Prefix
4T - The 4T- prefix designates a tapered roller bearing that is made of a special grade of case-hardened bearing steel and is interchangeable with other manufacturers taper with the same part number.| d (mm) | 69.85 | d1 (mm) | 95 | D (mm) | 120 |
| B (mm) | 32.54 | C (mm) | 26.2 | T (mm) | 32.54 |
| a (mm) | 26.44 | e | 0.36 | Y2 | 1.67 |
| Y0 | 0.92 | Mass (kg) | 1.47 |
| ra max (mm) | 3.5 |
| Dynamic load C (kN) | 147 | Rating life coefficient A2 | 1.4 | Static load C0 (kN) | 214 |
| Fatigue limit load Cu (kN) | 26.1 | Nlim (oil) (Tr/min) | 4000 | Nlim (grease) (Tr/min) | 3000 |
| Min operating temperature Tmin (°C) | -40 | Max operating temperature Tmax (°C) | 120 | Characteristic cage frequency FTF (Hz) | 0.44 |
| Characteristic rolling element frequency BSF (Hz) | 8.04 | Characteristic outer ring frequency BPF0 (Hz) | 9.69 | Characteristic inner ring frequency BPFI (Hz) | 12.31 |
