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3312A - SNR

3312A

Double row angular contact ball bearing, polyamide cage, open

Documentation

Product information

PRODUCT DEFINITION
BrandSNR
d - Internal diameter60 mm
D - External diameter130 mm
B - Bearing/Inner ring width54 mm
d1 - External diameter inner ring81,3 mm
D1 - Inner diameter outer ring108,7 mm
a - Charge load application point67,3 mm
α - Contact angle25 °
rs - Min fillet radius2,1 mm
Radial clearance classCN
Precision classP0
Mass3,24 kg
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PRODUCT PERFORMANCE
C - Dynamic load121 kN
C0 - Static load97,9 kN
Cu - Fatigue limit load6,1 kN
f0 - Coefficient13.7
N ref - Reference thermal speed4700 tr/min
N lim - Mechanical Limit Speed5000 tr/min
Tmin - Min operating temperature-20 °C
Tmax - Max operating temperature120 °C
BEARING FREQUENCIES
BPFO - Over rolling frequency on outer ring (60 rpm)3,152 Hz
BPFI - Over rolling frequency on inner (60 rpm)4,848 Hz
BSF - Over rolling frequency on rolling element (60 rpm)4,082 Hz
BRF - Rotational frequency – rolling element (60 rpm)2,041 Hz
FTF - Rotational frequency - cage (60 rpm)0,394 Hz
ABUTMENT
da min - Min shoulder diameter IR71 mm
Da max - Max shoulder diameter OR119 mm
ra max - Max shaft & housing fillet radius2 mm
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