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Single row cylindrical roller bearings

NJ.2306.EG15J30 - SNR

Single row cylindrical roller bearing, single direction for axial loads, separable, polyamide 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
BrandSNR
d - Internal diameter30 mm
D - External diameter72 mm
B - Bearing/Inner ring width27 mm
E - Upper roller diameter62,5 mm
F - Under roller diameter40,5 mm
d1 - IR flange outer diameter45 mm
D1 - OR flange inner diameter59,2 mm
rs - Min fillet radius1,1 mm
r1s - Min fillet radius1,1 mm
Radial clearance classC3
Mass0,54 kg
PRODUCT PERFORMANCE
C - Dynamic load75,9 kN
C0 - Static load79,5 kN
Cu - Fatigue limit load9,7 kN
N ref - Reference thermal speed7200 tr/min
N lim - Mechanical Limit Speed12000 tr/min
N lim - Oil lubrication limit speed9700 tr/min
N lim - Grease lubrication limit speed7800 tr/min
Tmin - Min operating temperature-20 °C
Tmax - Max operating temperature120 °C
BEARING FREQUENCIES
BPFO - Over rolling frequency on outer ring (60 rpm)4,718 Hz
BPFI - Over rolling frequency on inner (60 rpm)7,282 Hz
BSF - Over rolling frequency on rolling element (60 rpm)4,468 Hz
BRF - Rotational frequency – rolling element (60 rpm)2,234 Hz
FTF - Rotational frequency - cage (60 rpm)0,393 Hz
ABUTMENT
da min - Min shoulder diameter IR36,5 mm
da max - Small face shoulder max diameter40 mm
db min - Min inner ring GO diameter44 mm
dc min - Min inner ring GO diameter48 mm
Da max - Max shoulder diameter OR65,5 mm
ra max - Max fillet radius1 mm
r1a - Max fillet radius1 mm

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