4T-72212C - NTN Single Row Taper Roller Bearing
4T-72212C - NTN Single Row Taper Roller Bearing
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4T-72212C bearing reference breakdown
Below we will break down the 4T-72212C 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.The suffix can be found at the end of the bearing number:
Suffix
C - Denotes a steeper angle for 323xx serie (for metric items only)| d (mm) | 53.98 | d1 (mm) | 89.5 | B (mm) | 32.79 |
| e | 0.74 | Y2 | 0.81 | Y0 | 0.45 |
| ra max (mm) | 3.5 |
| Dynamic load C (kN) | 154 | Rating life coefficient A2 | 1.4 | Static load C0 (kN) | 188 |
| Fatigue limit load Cu (kN) | 22.9 | Nlim (oil) (Tr/min) | 3900 | 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) | 5.59 | Characteristic outer ring frequency BPF0 (Hz) | 6.75 | Characteristic inner ring frequency BPFI (Hz) | 9.25 |
