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1209KC3 - SNR


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


3D file

Technical datasheet

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d - Internal diameter45 mm
D - External diameter85 mm
B - Bearing/Inner ring width19 mm
d1 - External diameter inner ring57,7 mm
D1 - Inner diameter outer ring72,1 mm
rs - Min fillet radius1,1 mm
Associated sleeve referenceH209
Radial clearance classC3
Precision classP0
Mass0,456 kg
Product classification image
C - Dynamic load21,5 kN
C0 - Static load7,3 kN
Cu - Fatigue limit load0,33 kN
e - Coefficient0.21
Y0 - Static axial load coefficient3.12
Y1 - Lower axial load coefficient2.98
Y2 - Upper axial load coefficient4.6
Nref - Reference thermal speed8100 tr/min
Nlim - Mechanical Limit Speed11000 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
BPFO - Characteristic outer ring frequency (60 rpm)6,828 Hz
BPFI - Characteristic inner ring frequency (60 rpm)9,172 Hz
FTF - Characteristic cage frequency (60 rpm)0,427 Hz
BSF - Characteristic rolling element frequency (60 rpm)6,612 Hz
da min - Min shoulder diameter IR51,5 mm
da max - Max shoulder diameter IR57 mm
db - Min diameter for Sleeve48 mm
Ce - Min length fro Sleeve5 mm
Da max - Max shoulder diameter OR78,5 mm
ra max - Max shaft & housing fillet radius1 mm
Product classification image

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