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Single row cylindrical roller bearings

NJ307EG15J30 - SNR

NJ307EG15J30

Single row cylindrical roller bearing, single direction for axial loads, 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 diameter35 mm
D - External diameter80 mm
B - Bearing/Inner ring width21 mm
E - Upper roller diameter70,2 mm
F - Under roller diameter46,2 mm
d1 - IR flange outer diameter51 mm
D1 - OR flange inner diameter66,6 mm
rs - Min fillet radius1,5 mm
r1s - Min fillet radius1,1 mm
Radial clearance classC3
Mass0,496 kg
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PRODUCT PERFORMANCE
C - Dynamic load64,2 kN
C0 - Static load62,4 kN
Cu - Fatigue limit load7,6 kN
N ref - Reference thermal speed7700 tr/min
N lim - Mechanical Limit Speed11000 tr/min
Tmin - Min operating temperature-20 °C
Tmax - Max operating temperature120 °C
BEARING FREQUENCIES
BPFO - Over rolling frequency on outer ring (60 rpm)4,763 Hz
BPFI - Over rolling frequency on inner (60 rpm)7,237 Hz
BSF - Over rolling frequency on rolling element (60 rpm)4,644 Hz
BRF - Rotational frequency – rolling element (60 rpm)2,322 Hz
FTF - Rotational frequency - cage (60 rpm)0,397 Hz
ABUTMENT
da min - Min shoulder diameter IR43 mm
da max - Small face shoulder max diameter45 mm
db min - Min inner ring GO diameter48 mm
dc min - Min inner ring GO diameter53 mm
Da max - Max shoulder diameter OR72 mm
ra max - Max fillet radius1,5 mm
r1a - Max fillet radius1 mm
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