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NJ2305EG15 - 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 diameter25 mm
D - External diameter62 mm
B - Bearing/Inner ring width24 mm
E - Upper roller diameter54 mm
F - Under roller diameter34 mm
d1 - IR flange outer diameter38,1 mm
D1 - OR flange inner diameter50,6 mm
rs - Min fillet radius1,1 mm
r1s - Min fillet radius1,1 mm
Radial clearance classCN
Mass0,347 kg
PRODUCT PERFORMANCE
C - Dynamic load58,1 kN
C0 - Static load57,6 kN
Cu - Fatigue limit load7 kN
N ref - Reference thermal speed8300 tr/min
N lim - Mechanical Limit Speed14000 tr/min
N lim - Oil lubrication limit speed11000 tr/min
N lim - Grease lubrication limit speed9100 tr/min
Tmin - Min operating temperature-20 °C
Tmax - Max operating temperature120 °C
BEARING FREQUENCIES
BPFO - Over rolling frequency on outer ring (60 rpm)4,25 Hz
BPFI - Over rolling frequency on inner (60 rpm)6,75 Hz
BSF - Over rolling frequency on rolling element (60 rpm)4,173 Hz
BRF - Rotational frequency – rolling element (60 rpm)2,087 Hz
FTF - Rotational frequency - cage (60 rpm)0,386 Hz
ABUTMENT
da min - Min shoulder diameter IR31,5 mm
da max - Small face shoulder max diameter33 mm
db min - Min inner ring GO diameter37 mm
dc min - Min inner ring GO diameter40 mm
Da max - Max shoulder diameter OR55,5 mm
ra max - Max fillet radius1 mm
r1a - Max fillet radius1 mm

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