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Single row cylindrical roller bearings

NJ2212EG15 - SNR

NJ2212EG15

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 diameter60 mm
D - External diameter110 mm
B - Bearing/Inner ring width28 mm
F - Under roller diameter72 mm
d1 - IR flange outer diameter77,7 mm
D1 - OR flange inner diameter95,8 mm
s - Max axial offset1,4 mm
rNs - Min fillet radius0 mm
D4 max - Max outer diameter of assembled stop ring0 mm
rs - Min fillet radius1,5 mm
r1s - Min fillet radius1,5 mm
Radial clearance classCN
Mass1,1 kg
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PRODUCT PERFORMANCE
C - Dynamic load145 kN
C0 - Static load155 kN
Cu - Fatigue limit load18,9 kN
N ref - Reference thermal speed4400 tr/min
N lim - Mechanical Limit Speed7500 tr/min
Tmin - Min operating temperature-20 °C
Tmax - Max operating temperature120 °C
BEARING FREQUENCIES
BPFO - Over rolling frequency on outer ring (60 rpm)6,698 Hz
BPFI - Over rolling frequency on inner (60 rpm)9,302 Hz
BSF - Over rolling frequency on rolling element (60 rpm)5,98 Hz
BRF - Rotational frequency – rolling element (60 rpm)2,99 Hz
FTF - Rotational frequency - cage (60 rpm)0,419 Hz
ABUTMENT
da min - Min shoulder diameter IR68 mm
da max - Small face shoulder max diameter71 mm
dc min - Min inner ring GO diameter80 mm
Da max - Max shoulder diameter OR102 mm
ra max - Max fillet radius1,5 mm
r1a - Max fillet radius1,5 mm
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