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Single row cylindrical roller bearings

N304ET2X - NTN

N304ET2X

Single row cylindrical roller bearing, floating, separable, polyamide cage

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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.

Documentation

Product information

PRODUCT DEFINITION
BrandNTN
d - Internal diameter20 mm
D - External diameter52 mm
B - Bearing/Inner ring width15 mm
E - Upper roller diameter45,5 mm
F - Under roller diameter27,5 mm
d1 - IR flange outer diameter31,1 mm
rs - Min fillet radius1,1 mm
r1s - Min fillet radius0,6 mm
Radial clearance classCN
Mass0,155 kg
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PRODUCT PERFORMANCE
C - Dynamic load31,5 kN
C0 - Static load26,9 kN
Cu - Fatigue limit load3,3 kN
N lim - Oil lubrication limit speed15000 tr/min
N lim - Grease lubrication limit speed13000 tr/min
Tmin - Min operating temperature-20 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da min - Min shoulder diameter IR26,5 mm
Da max - Max shoulder diameter OR48 mm
Db min - Small face shoulder min diameter46 mm
Dc max - Max outer ring GO diameter43 mm
ra max - Max fillet radius1 mm
r1a - Max fillet radius0,6 mm
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