30214A - SNR


Tapered roller bearing, pressed steel cage

The single row tapered roller bearing is available in metric dimensions (ISO 355 and JIS B 1512 standards) and in inches (ABMA standard, metric series including J). The single row in tapered roller bearing range, is the most widely used and is generally mounted in opposition.


3D file

Technical datasheet

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d - Internal diameter70 mm
D - External diameter125 mm
B - Bearing/Inner ring width24 mm
C - Outer ring width21 mm
T - Total width26,25 mm
d1 - External diameter inner ring94,8 mm
a - Charge load application point26,1 mm
rs - Min fillet radius2 mm
r1s - Min fillet radius1,5 mm
Mass1,261 kg
ISO 355 referenceT3EB070
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C - Dynamic load138 kN
A2 - Rating life coefficient1
C0 - Static load174 kN
Cu - Fatigue limit load21,2 kN
e - Coefficient0.42
Y0 - Static axial load coefficient0.79
Y2 - Upper axial load coefficient1.43
Nref - Reference thermal speed3600 tr/min
Nlim - Mechanical Limit Speed5800 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
BPFO - Characteristic outer ring frequency (60 rpm)8,576 Hz
BPFI - Characteristic inner ring frequency (60 rpm)11,424 Hz
FTF - Characteristic cage frequency (60 rpm)0,429 Hz
BSF - Characteristic rolling element frequency (60 rpm)6,627 Hz
da max - Max shoulder diameter IR81 mm
db min - Min IR shoulder diameter80 mm
Da min - Min shoulder diameter OR110 mm
Da max - Max shoulder diameter OR116,5 mm
Db min - Min OR shoulder diameter118 mm
Ca - Min clearance4 mm
Cb - Min clearance5 mm
ra max - Max fillet radius2 mm
r1a - Max fillet radius1,5 mm
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