4T-72212C - NTN Single Row Taper Roller Bearing

  • £57.49

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:


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:


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

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