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6311C3 - SNR


Deep groove ball bearing, radial contact, pressed steel cage, open

The single row deep-groove ball bearing is the most popular bearing. It is available in a wide range of sizes with several possible options: sealing with shields or seals, presence of a retaining ring, varied clearances, several cage types, etc.


3D file

Technical datasheet

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d - Internal diameter55 mm
D - External diameter120 mm
B - Bearing/Inner ring width29 mm
d1 - External diameter inner ring71 mm
D1 - Inner diameter outer ring104,4 mm
rs - Min fillet radius2 mm
Radial clearance classC3
Mass1,34 kg
Product classification image
C - Dynamic load75,3 kN
C0 - Static load44,7 kN
Cu - Fatigue limit load2,03 kN
f0 - Coefficient13.1
Nref - Reference thermal speed7200 tr/min
Nlim - Mechanical Limit Speed9500 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
BPFO - Characteristic outer ring frequency (60 rpm)3,057 Hz
BPFI - Characteristic inner ring frequency (60 rpm)4,943 Hz
FTF - Characteristic cage frequency (60 rpm)0,382 Hz
BSF - Characteristic rolling element frequency (60 rpm)4,004 Hz
da min - Min shoulder diameter IR64 mm
Da max - Max shoulder diameter OR111 mm
ra max - Max shaft & housing fillet radius2 mm
Product classification image
Calcul factors image

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