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Single row cylindrical roller bearings

NF308EAT2X - NTN

NF308EAT2X

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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 diameter40 mm
D - External diameter90 mm
B - Bearing/Inner ring width23 mm
E - Upper roller diameter80 mm
F - Under roller diameter52 mm
d1 - IR flange outer diameter57,6 mm
rs - Min fillet radius1,5 mm
r1s - Min fillet radius1,5 mm
Radial clearance classCN
Mass0,665 kg
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PRODUCT PERFORMANCE
C - Dynamic load98,5 kN
C0 - Static load81,5 kN
Cu - Fatigue limit load7,2 kN
N lim - Oil lubrication limit speed10200 tr/min
N lim - Grease lubrication limit speed7200 tr/min
Tmin - Min operating temperature-20 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da min - Min shoulder diameter IR48 mm
Da max - Max shoulder diameter OR82 mm
Db min - Small face shoulder min diameter81,5 mm
ra max - Max fillet radius1,5 mm
r1a - Max fillet radius1,5 mm
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