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30202A - SNR

30202A

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.

Documentation

Product information

PRODUCT DEFINITION
BrandSNR
d - Internal diameter15 mm
D - External diameter35 mm
B - Bearing/Inner ring width11 mm
C - Outer ring width10 mm
T - Total width11,75 mm
d1 - External diameter inner ring25,5 mm
a - Charge load application point8,4 mm
rs - Min fillet radius0,6 mm
r1s - Min fillet radius0,6 mm
Mass0,054 kg
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PRODUCT PERFORMANCE
C - Dynamic load16,4 kN
A2 - Rating life coefficient1
C0 - Static load14,3 kN
Cu - Fatigue limit load1,75 kN
e - Coefficient0.32
Y0 - Static axial load coefficient1.04
Y2 - Upper axial load coefficient1.88
N ref - Reference thermal speed13000 tr/min
N lim - Mechanical Limit Speed23000 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
BEARING FREQUENCIES
BPFO - Over rolling frequency on outer ring (60 rpm)5,227 Hz
BPFI - Over rolling frequency on inner (60 rpm)7,773 Hz
BSF - Over rolling frequency on rolling element (60 rpm)4,802 Hz
BRF - Rotational frequency – rolling element (60 rpm)2,401 Hz
FTF - Rotational frequency - cage (60 rpm)0,402 Hz
ABUTMENT
da max - Max shoulder diameter IR20 mm
db min - Min IR shoulder diameter20,5 mm
Da min - Min shoulder diameter OR29 mm
Da max - Max shoulder diameter OR29,5 mm
Db min - Min OR shoulder diameter33 mm
Ca - Min clearance2 mm
Cb - Min clearance1,8 mm
ra max - Max fillet radius1 mm
r1a - Max fillet radius1 mm
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