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Double row angular contact ball bearings

3207.AC3 - SNR

3207.AC3

Double row angular contact ball bearing, polyamide cage, open

Documentation

Product information

PRODUCT DEFINITION
BrandSNR
d - Internal diameter35 mm
D - External diameter72 mm
B - Bearing/Inner ring width27 mm
d1 - External diameter inner ring42,4 mm
D1 - Inner diameter outer ring63,8 mm
a - Charge load application point36,5 mm
α - Contact angle25 °
rs - Min fillet radius1,1 mm
Radial clearance classC3
Precision classP0
Mass0,419 kg
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PRODUCT PERFORMANCE
C - Dynamic load37,4 kN
C0 - Static load28,2 kN
Cu - Fatigue limit load1,73 kN
f0 - Coefficient14.3
N ref - Reference thermal speed7600 tr/min
N lim - Mechanical Limit Speed9200 tr/min
Tmin - Min operating temperature-20 °C
Tmax - Max operating temperature120 °C
BEARING FREQUENCIES
BPFO - Over rolling frequency on outer ring (60 rpm)3,661 Hz
BPFI - Over rolling frequency on inner (60 rpm)5,339 Hz
BSF - Over rolling frequency on rolling element (60 rpm)4,695 Hz
BRF - Rotational frequency – rolling element (60 rpm)2,348 Hz
FTF - Rotational frequency - cage (60 rpm)0,407 Hz
ABUTMENT
da min - Min shoulder diameter IR41,5 mm
Da max - Max shoulder diameter OR65,5 mm
ra max - Max shaft & housing fillet radius1 mm
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