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30214A - SNR

30214A

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.

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Technical datasheet

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PRODUCT DEFINITION
BrandSNR
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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PRODUCT PERFORMANCE
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
BEARING FREQUENCIES
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
ABUTMENT
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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