4T-1779 - NTN Single Row Taper Roller Bearing

  • £16.21


4T-1779 bearing reference breakdown

Below we will break down the 4T-1779 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) 23.81 d1 (mm) 39 B (mm) 19.84
e 0.31 Y2 1.95 Y0 1.07
ra max (mm) 0.8
Dynamic load C (kN) 42.5 Rating life coefficient A2 1.4 Static load C0 (kN) 46.5
Fatigue limit load Cu (kN) 5.7 Nlim (oil) (Tr/min) 9600 Nlim (grease) (Tr/min) 7200
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) 5.3 Characteristic outer ring frequency BPF0 (Hz) 6.16 Characteristic inner ring frequency BPFI (Hz) 8.84

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