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NU244 - NTN

NU244

Single row cylindrical roller bearing, floating, separable, brass 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 diameter220 mm
D - External diameter400 mm
B - Bearing/Inner ring width65 mm
E - Upper roller diameter350 mm
F - Under roller diameter270 mm
rs - Min fillet radius4 mm
r1s - Min fillet radius4 mm
Radial clearance classCN
Mass37,7 kg
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PRODUCT PERFORMANCE
C - Dynamic load845 kN
C0 - Static load1080 kN
Cu - Fatigue limit load94 kN
N lim - Oil lubrication limit speed1900 tr/min
N lim - Grease lubrication limit speed1600 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da min - Min shoulder diameter IR236 mm
da max - Small face shoulder max diameter266 mm
db min - Min inner ring GO diameter273 mm
Da max - Max shoulder diameter OR384 mm
ra max - Max fillet radius3 mm
r1a - Max fillet radius3 mm
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