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NJ304ET2XC3 - NTN

NJ304ET2XC3

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.

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3D file

Technical datasheet

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Specs

PRODUCT DEFINITION

d - Internal diameter 20 mm
D - External diameter 52 mm
B - Bearing/Inner ring width 15 mm
E - Upper roller diameter 45,5 mm
F - Under roller diameter 27,5 mm
d1 - IR flange outer diameter 31,1 mm
rs - Min fillet radius 1,1 mm
r1s - Min fillet radius 0,6 mm
Radial clearance class C3
Mass 0,149 kg
Brand NTN
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PRODUCT PERFORMANCE

C - Dynamic load 31,5 kN
C0 - Static load 26,9 kN
Cu - Fatigue limit load 3,3 kN
Nlim - Oil lubrication limit speed 15000 tr/min
Nlim - Grease lubrication limit speed 13000 tr/min
Tmin - Min operating temperature -20 °C
Tmax - Max operating temperature 120 °C
FTF - Characteristic cage frequency 0,377 Hz
BSF - Characteristic rolling element frequency 3,809 Hz
BPFO - Characteristic outer ring frequency 3,767 Hz
BPFI - Characteristic inner ring frequency 6,233 Hz

ABUTMENT

da min - Min shoulder diameter IR 26,5 mm
da max - Small face shoulder max diameter 27 mm
dc min - Min inner ring GO diameter 33 mm
Da max - Max shoulder diameter OR 45,5 mm
ra max - Max fillet radius 1 mm
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