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NU311 - NTN

NU311

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 diameter55 mm
D - External diameter120 mm
B - Bearing/Inner ring width29 mm
E - Upper roller diameter104,5 mm
F - Under roller diameter70,5 mm
rs - Min fillet radius2 mm
r1s - Min fillet radius2 mm
Radial clearance classCN
Mass1,45 kg
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PRODUCT PERFORMANCE
C - Dynamic load123 kN
C0 - Static load111 kN
Cu - Fatigue limit load13,6 kN
N lim - Oil lubrication limit speed7000 tr/min
N lim - Grease lubrication limit speed5900 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da min - Min shoulder diameter IR64 mm
da max - Small face shoulder max diameter69 mm
db min - Min inner ring GO diameter72 mm
Da max - Max shoulder diameter OR111 mm
ra max - Max fillet radius2 mm
r1a - Max fillet radius2 mm
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