4T-6379/6320 - NTN Single Row Taper Roller Bearing
4T-6379/6320 bearing reference breakdown
Below we will break down the 4T-6379/6320 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) | 65.09 | d1 (mm) | 98 | D (mm) | 135.76 |
| B (mm) | 56.01 | C (mm) | 44.45 | T (mm) | 53.98 |
| a (mm) | 35.18 | e | 0.32 | Y2 | 1.85 |
| Y0 | 1.02 | Mass (kg) | 3.71 |
| ra max (mm) | 3.5 |
| Dynamic load C (kN) | 278 | Rating life coefficient A2 | 1.4 | Static load C0 (kN) | 380 |
| Fatigue limit load Cu (kN) | 46.3 | Nlim (oil) (Tr/min) | 3800 | Nlim (grease) (Tr/min) | 2900 |
| Min operating temperature Tmin (°C) | -40 | Max operating temperature Tmax (°C) | 120 | Characteristic cage frequency FTF (Hz) | 0.42 |
| Characteristic rolling element frequency BSF (Hz) | 5.62 | Characteristic outer ring frequency BPF0 (Hz) | 6.65 | Characteristic inner ring frequency BPFI (Hz) | 9.35 |
