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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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Specs

PRODUCT DEFINITION

d - Internal diameter 70 mm
D - External diameter 125 mm
B - Bearing/Inner ring width 24 mm
C - Outer ring width 21 mm
T - Total width 26,25 mm
d1 - External diameter inner ring 94,8 mm
a - Charge load application point 26,1 mm
rs - Min fillet radius 2 mm
r1s - Min fillet radius 1,5 mm
Mass 1,261 kg
ISO 355 reference T3EB070
Brand SNR
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PRODUCT PERFORMANCE

C - Dynamic load 138 kN
A2 - Rating life coefficient 1
C0 - Static load 174 kN
Cu - Fatigue limit load 21,2 kN
e - Coefficient 0.42
Y0 - Static axial load coefficient 0.79
Y2 - Upper axial load coefficient 1.43
Nref - Reference thermal speed 3600 tr/min
Nlim - Mechanical Limit Speed 5800 tr/min
Tmin - Min operating temperature -40 °C
Tmax - Max operating temperature 120 °C
FTF - Characteristic cage frequency 0,429 Hz
BSF - Characteristic rolling element frequency 6,627 Hz
BPFO - Characteristic outer ring frequency 8,576 Hz
BPFI - Characteristic inner ring frequency 11,424 Hz

ABUTMENT

da max - Max shoulder diameter IR 81 mm
db min - Min IR shoulder diameter 80 mm
Da min - Min shoulder diameter OR 110 mm
Da max - Max shoulder diameter OR 116,5 mm
Db min - Min OR shoulder diameter 118 mm
Ca - Min clearance 4 mm
Cb - Min clearance 5 mm
ra max - Max fillet radius 2 mm
r1a - Max fillet radius 1,5 mm
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