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Double row angular contact ball bearings

3309.AC3 - SNR

3309.AC3

Double row angular contact ball bearing, polyamide cage, open

Documentation

Product information

PRODUCT DEFINITION
BrandSNR
d - Internal diameter45 mm
D - External diameter100 mm
B - Bearing/Inner ring width39,7 mm
d1 - External diameter inner ring62,3 mm
D1 - Inner diameter outer ring81,6 mm
a - Charge load application point50,1 mm
α - Contact angle25 °
rs - Min fillet radius1,5 mm
Radial clearance classC3
Precision classP0
Mass1,21 kg
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PRODUCT PERFORMANCE
C - Dynamic load66,2 kN
C0 - Static load51 kN
Cu - Fatigue limit load3,15 kN
f0 - Coefficient13.9
N ref - Reference thermal speed5500 tr/min
N lim - Mechanical Limit Speed6600 tr/min
Tmin - Min operating temperature-20 °C
Tmax - Max operating temperature120 °C
BEARING FREQUENCIES
BPFO - Over rolling frequency on outer ring (60 rpm)3,197 Hz
BPFI - Over rolling frequency on inner (60 rpm)4,803 Hz
BSF - Over rolling frequency on rolling element (60 rpm)4,335 Hz
BRF - Rotational frequency – rolling element (60 rpm)2,168 Hz
FTF - Rotational frequency - cage (60 rpm)0,4 Hz
ABUTMENT
da min - Min shoulder diameter IR53 mm
Da max - Max shoulder diameter OR92 mm
ra max - Max shaft & housing fillet radius1,5 mm
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