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Single row cylindrical roller bearings

NU318 - NTN

NU318

Single row cylindrical roller bearing, floating, separable, pressed steel 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 diameter90 mm
D - External diameter190 mm
B - Bearing/Inner ring width43 mm
E - Upper roller diameter165 mm
F - Under roller diameter115 mm
rs - Min fillet radius3 mm
r1s - Min fillet radius3 mm
Radial clearance classCN
Mass5,3 kg
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PRODUCT PERFORMANCE
C - Dynamic load266 kN
C0 - Static load265 kN
Cu - Fatigue limit load29,3 kN
N lim - Oil lubrication limit speed4300 tr/min
N lim - Grease lubrication limit speed3700 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da min - Min shoulder diameter IR103 mm
da max - Small face shoulder max diameter111 mm
db min - Min inner ring GO diameter117 mm
Da max - Max shoulder diameter OR177 mm
ra max - Max fillet radius2,5 mm
r1a - Max fillet radius2,5 mm
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