NJ304EG15 - SNR


Single row cylindrical roller bearing, single direction for axial loads, separable, polyamide cage.

In the cylindrical roller bearing range, the single row roller bearing withstands high radial loads. The standard ISO ranges (NU, N, NJ, NF, NUP, NH, RNU, HJ) are available with different types of cage, bore diameters, shoulder rings.


3D file

Technical datasheet

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Internal diameter (d) 20 mm
External diameter (D) 52 mm
Bearing/Inner ring width (B) 15 mm
Upper roller diameter E 45,5 mm
Under roller diameter F 27,5 mm
d1 31,3 mm
OR flange inner diameter D1 42,4 mm
Min fillet radius (rs) 1,1 mm
Min fillet radius r1s 0,6 mm
Radial clearance class CN
Mass 0,156 kg
Brand SNR
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Dynamic load (C) 30,7 kN
Static load (C0) 26 kN
Fatigue limit load (Cu) 3,15 kN
Reference thermal speed (Nref) 12000 tr/min
Mechanical Limit Speed (Nlim) 17000 tr/min
Nlim (oil) 14000 tr/min
Nlim (grease) 12000 tr/min
Min operating temperature (Tmin) -20 °C
Max operating temperature (Tmax) 120 °C
Characteristic cage frequency, FTF 0,377 Hz
Characteristic rolling element frequency, BSF 3,809 Hz
Characteristic outer ring frequency, BPF0 3,767 Hz
Characteristic inner ring frequency, BPFI 6,233 Hz


Min shoulder diameter IR (da min) 26,5 mm
Small face shoulder max diameter da max 27 mm
db min 30 mm
Min NJ & N type IR GO diameter dc min 33 mm
Max shoulder diameter OR (Da max) 45,5 mm
Max fillet radius ra max 1 mm
Maxi fillet radius r1a 0,6 mm
Product classification image
Calcul factors image

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