4T-782/772 - NTN Single Row Taper Roller Bearing

  • £183.55

4T-782/772 bearing reference breakdown

Below we will break down the 4T-782/772 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:


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) 104.78 d1 (mm) 139 D (mm) 180.98
B (mm) 48.01 C (mm) 38.1 T (mm) 47.62
a (mm) 39.52 e 0.39 Y2 1.56
Y0 0.86 Mass (kg) 4.92
ra max (mm) 3.5
Dynamic load C (kN) 285 Rating life coefficient A2 1.4 Static load C0 (kN) 430
Fatigue limit load Cu (kN) 47.5 Nlim (oil) (Tr/min) 2700 Nlim (grease) (Tr/min) 2000
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) 7.93 Characteristic outer ring frequency BPF0 (Hz) 9.24 Characteristic inner ring frequency BPFI (Hz) 11.76

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