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Double row angular contact ball bearings

3306AC3 - SNR

3306AC3

Double row angular contact ball bearing, polyamide cage, open

Documentation

Product information

PRODUCT DEFINITION
BrandSNR
d - Internal diameter30 mm
D - External diameter72 mm
B - Bearing/Inner ring width30,2 mm
d1 - External diameter inner ring42 mm
D1 - Inner diameter outer ring63 mm
a - Charge load application point36,5 mm
α - Contact angle25 °
rs - Min fillet radius1,1 mm
Radial clearance classC3
Precision classP0
Mass0,519 kg
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PRODUCT PERFORMANCE
C - Dynamic load42,8 kN
C0 - Static load29,7 kN
Cu - Fatigue limit load1,87 kN
f0 - Coefficient13.5
N ref - Reference thermal speed7100 tr/min
N lim - Mechanical Limit Speed9300 tr/min
Tmin - Min operating temperature-20 °C
Tmax - Max operating temperature120 °C
BEARING FREQUENCIES
BPFO - Over rolling frequency on outer ring (60 rpm)3,125 Hz
BPFI - Over rolling frequency on inner (60 rpm)4,875 Hz
BSF - Over rolling frequency on rolling element (60 rpm)3,947 Hz
BRF - Rotational frequency – rolling element (60 rpm)1,974 Hz
FTF - Rotational frequency - cage (60 rpm)0,391 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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