NU228C3 - NTN Single Row Cylindrical Roller Bearing

  • £329.12

NU228C3 bearing reference breakdown

Below we will break down the NU228C3 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:


NU - Denotes an NU type single row cylindrical roller bearing

The suffix can be found at the end of the bearing number:


C3 - Indicates a radial internal clearance of the C3 class

The body of the bearing reference is what is left after removing the suffix and the prefix:


2 - Light Duty Series
28 - 140mm Bore Size

d (mm) 140 D (mm) 250 B (mm) 42
E (mm) 221 F (mm) 169 rs min (mm) 3
r1s min (mm) 3 Mass (without HJ ring) (kg) 8.48
da min (mm) 153 Da max (mm) 237 ra max (mm) 2.5
r1a max (mm) 2.5 db min (mm) 171 da max (mm) 166
Dynamic load C (kN) 310 Static load C0 (kN) 400 Fatigue limit load Cu (kN) 39.9
Nlim (oil) (Tr/min) 3100 Nlim (grease) (Tr/min) 2700 Min operating temperature Tmin (°C) -40
Max operating temperature Tmax (°C) 120 Characteristic cage frequency FTF (Hz) 0.43 Characteristic rolling element frequency BSF (Hz) 7.37
Characteristic outer ring frequency BPF0 (Hz) 7.37 Characteristic inner ring frequency BPFI (Hz) 9.63

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