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1220KC3 - SNR

1220KC3

Self-aligning ball bearing, pressed steel cage, tapered bore, open

Documentation

Product information

PRODUCT DEFINITION
BrandSNR
d - Internal diameter100 mm
D - External diameter180 mm
B - Bearing/Inner ring width34 mm
d1 - External diameter inner ring127,2 mm
D1 - Inner diameter outer ring153,4 mm
rs - Min fillet radius2,1 mm
Associated sleeve referenceH220
Radial clearance classC3
Precision classP0
Mass3,73 kg
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PRODUCT PERFORMANCE
C - Dynamic load68,4 kN
C0 - Static load29,7 kN
Cu - Fatigue limit load1,14 kN
e - Coefficient0.17
Y0 - Static axial load coefficient3.81
Y1 - Lower axial load coefficient3.64
Y2 - Upper axial load coefficient5.63
N ref - Reference thermal speed4600 tr/min
N lim - Mechanical Limit Speed4800 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
BEARING FREQUENCIES
BPFO - Over rolling frequency on outer ring (60 rpm)8,767 Hz
BPFI - Over rolling frequency on inner (60 rpm)11,233 Hz
BSF - Over rolling frequency on rolling element (60 rpm)7,932 Hz
BRF - Rotational frequency – rolling element (60 rpm)3,966 Hz
FTF - Rotational frequency - cage (60 rpm)0,438 Hz
ABUTMENT
da min - Min shoulder diameter IR111 mm
da max - Max shoulder diameter IR124 mm
db - Min diameter for Sleeve106 mm
Ce - Min length fro Sleeve7 mm
Da max - Max shoulder diameter OR169 mm
ra max - Max shaft & housing fillet radius2 mm
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