NU308 - NTN Single Row Cylindrical Roller Bearing

  • £30.93

NU308 bearing reference breakdown

Below we will break down the NU308 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 a NU type single row cylindrical roller bearing

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


3 - Medium Duty Series
08 - 40mm Bore Size

d (mm) 40 D (mm) 90 B (mm) 23
E (mm) 77.5 F (mm) 53.5 rs min (mm) 1.5
r1s min (mm) 1.5 Mass (without HJ ring) (kg) 0.66
da min (mm) 48 Da max (mm) 82 ra max (mm) 1.5
r1a max (mm) 1.5 db min (mm) 55 da max (mm) 51
Dynamic load C (kN) 58.5 Static load C0 (kN) 57 Fatigue limit load Cu (kN) 7
Nlim (oil) (Tr/min) 9400 Nlim (grease) (Tr/min) 8000 Min operating temperature Tmin (°C) -40
Max operating temperature Tmax (°C) 120

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