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Single row cylindrical roller bearings

NU312EG15 - SNR

NU312EG15
NU312EG15
NU312EG15
NU312EG15

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.

Documentation

Product information

PRODUCT DEFINITION
BrandSNR
d - Internal diameter60 mm
D - External diameter130 mm
B - Bearing/Inner ring width31 mm
F - Under roller diameter77 mm
d1 - IR flange outer diameter0 mm
D1 - OR flange inner diameter109,5 mm
s - Max axial offset1 mm
rs - Min fillet radius2,1 mm
r1s - Min fillet radius2,1 mm
Radial clearance classCN
Mass1,82 kg
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PRODUCT PERFORMANCE
C - Dynamic load173 kN
C0 - Static load164 kN
Cu - Fatigue limit load20 kN
N ref - Reference thermal speed4900 tr/min
N lim - Mechanical Limit Speed6500 tr/min
Tmin - Min operating temperature-20 °C
Tmax - Max operating temperature120 °C
BEARING FREQUENCIES
BPFO - Over rolling frequency on outer ring (60 rpm)5,214 Hz
BPFI - Over rolling frequency on inner (60 rpm)7,786 Hz
BSF - Over rolling frequency on rolling element (60 rpm)4,855 Hz
BRF - Rotational frequency – rolling element (60 rpm)2,428 Hz
FTF - Rotational frequency - cage (60 rpm)0,401 Hz
ABUTMENT
da min - Min shoulder diameter IR71 mm
da max - Small face shoulder max diameter75 mm
db min - Min inner ring GO diameter79 mm
Da max - Max shoulder diameter OR119 mm
ra max - Max fillet radius2 mm
r1a - Max fillet radius2 mm
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