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Single row cylindrical roller bearings

N.209.EG15 - SNR

Single row cylindrical roller bearing, floating, 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 diameter45 mm
D - External diameter85 mm
B - Bearing/Inner ring width19 mm
E - Upper roller diameter76,5 mm
F - Under roller diameter54,5 mm
d1 - IR flange outer diameter59 mm
rs - Min fillet radius1,1 mm
r1s - Min fillet radius1,1 mm
Radial clearance classCN
Mass0,43 kg
PRODUCT PERFORMANCE
C - Dynamic load64,8 kN
C0 - Static load68,9 kN
Cu - Fatigue limit load8,4 kN
N ref - Reference thermal speed6900 tr/min
N lim - Mechanical Limit Speed9900 tr/min
N lim - Oil lubrication limit speed8100 tr/min
N lim - Grease lubrication limit speed6700 tr/min
Tmin - Min operating temperature-20 °C
Tmax - Max operating temperature120 °C
BEARING FREQUENCIES
BPFO - Over rolling frequency on outer ring (60 rpm)6,24 Hz
BPFI - Over rolling frequency on inner (60 rpm)8,76 Hz
BSF - Over rolling frequency on rolling element (60 rpm)5,787 Hz
BRF - Rotational frequency – rolling element (60 rpm)2,894 Hz
FTF - Rotational frequency - cage (60 rpm)0,416 Hz
ABUTMENT
da min - Min shoulder diameter IR51,5 mm
Da max - Max shoulder diameter OR78,5 mm
Db min - Small face shoulder min diameter77 mm
Dc max - Max outer ring GO diameter74 mm
ra max - Max fillet radius1 mm
r1a - Max fillet radius1 mm

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