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NU312ET2XC3 - NTN

NU312ET2XC3

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

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.

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3D file

Technical datasheet

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Specs

PRODUCT DEFINITION

d - Internal diameter 60 mm
D - External diameter 130 mm
B - Bearing/Inner ring width 31 mm
E - Upper roller diameter 115 mm
F - Under roller diameter 77 mm
rs - Min fillet radius 2,1 mm
r1s - Min fillet radius 2,1 mm
Radial clearance class C3
Mass 1,835 kg
Brand NTN
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PRODUCT PERFORMANCE

C - Dynamic load 150 kN
C0 - Static load 157 kN
Cu - Fatigue limit load 19,1 kN
Nlim - Oil lubrication limit speed 5800 tr/min
Nlim - Grease lubrication limit speed 4900 tr/min
Tmin - Min operating temperature -20 °C
Tmax - Max operating temperature 120 °C
FTF - Characteristic cage frequency 0,401 Hz
BSF - Characteristic rolling element frequency 4,855 Hz
BPFO - Characteristic outer ring frequency 5,214 Hz
BPFI - Characteristic inner ring frequency 7,786 Hz

ABUTMENT

da min - Min shoulder diameter IR 71 mm
da max - Small face shoulder max diameter 75 mm
db min - Min inner ring GO diameter 79 mm
Da max - Max shoulder diameter OR 119 mm
ra max - Max fillet radius 2 mm
r1a - Max fillet radius 2 mm
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