4T-2687/2631 - NTN Single Row Taper Roller Bearing
4T-2687/2631 - NTN Single Row Taper Roller Bearing
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4T-2687/2631 bearing reference breakdown
Below we will break down the 4T-2687/2631 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) | 25.4 | d1 (mm) | 45 | D (mm) | 66.42 |
B (mm) | 25.43 | C (mm) | 19.05 | T (mm) | 23.81 |
a (mm) | 14.51 | e | 0.25 | Y2 | 2.36 |
Y0 | 1.3 | Mass (kg) | 0.44 |
ra max (mm) | 1.3 |
Dynamic load C (kN) | 64.5 | Rating life coefficient A2 | 1.4 | Static load C0 (kN) | 72.5 |
Fatigue limit load Cu (kN) | 8.8 | Nlim (oil) (Tr/min) | 8200 | Nlim (grease) (Tr/min) | 6200 |
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) | 8.31 |