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Double-row self-aligning ball bearings

2306 - SNR

2306

Self-aligning ball bearing, pressed steel cage, open

Documentation

Product information

PRODUCT DEFINITION
BrandSNR
d - Internal diameter30 mm
D - External diameter72 mm
B - Bearing/Inner ring width27 mm
d1 - External diameter inner ring41,9 mm
D1 - Inner diameter outer ring58,4 mm
rs - Min fillet radius1,1 mm
Radial clearance classCN
Precision classP0
Mass0,501 kg
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PRODUCT PERFORMANCE
C - Dynamic load30,4 kN
C0 - Static load8,8 kN
Cu - Fatigue limit load0,4 kN
e - Coefficient0.44
Y0 - Static axial load coefficient1.5
Y1 - Lower axial load coefficient1.43
Y2 - Upper axial load coefficient2.22
N ref - Reference thermal speed10000 tr/min
N lim - Mechanical Limit Speed13000 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
BEARING FREQUENCIES
BPFO - Over rolling frequency on outer ring (60 rpm)4,25 Hz
BPFI - Over rolling frequency on inner (60 rpm)6,75 Hz
BSF - Over rolling frequency on rolling element (60 rpm)4,006 Hz
BRF - Rotational frequency – rolling element (60 rpm)2,003 Hz
FTF - Rotational frequency - cage (60 rpm)0,386 Hz
ABUTMENT
da min - Min shoulder diameter IR36,5 mm
Da max - Max shoulder diameter OR65,5 mm
ra max - Max shaft & housing fillet radius1 mm
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