4T-6280/6220 - NTN Single Row Taper Roller Bearing
4T-6280/6220 - NTN Single Row Taper Roller Bearing
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4T-6280/6220 bearing reference breakdown
Below we will break down the 4T-6280/6220 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) | 53.98 | D (mm) | 127 | B (mm) | 52.39 |
| C (mm) | 41.28 | T (mm) | 50.8 | a (mm) | 31.2 |
| rs min (mm) | 3.56 | r1s min (mm) | 3.3 | e | 0.3 |
| Y2 | 2.01 | Y0 | 1.11 | Mass (kg) | 3.25 |
| ra max (mm) | 3.5 |
| Dynamic load C (kN) | 250 | Rating life coefficient A2 | 1.4 | Static load C0 (kN) | 320 |
| Nlim (oil) (Tr/min) | 4300 | Nlim (grease) (Tr/min) | 3200 | Min operating temperature Tmin (°C) | -40 |
| Max operating temperature Tmax (°C) | 120 | Characteristic cage frequency FTF (Hz) | 0.41 | Characteristic rolling element frequency BSF (Hz) | 5.1 |
| Characteristic outer ring frequency BPF0 (Hz) | 5.7 | Characteristic inner ring frequency BPFI (Hz) | 8.3 |
