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6311ZZC4/5K - NTN


Deep groove ball bearing, radial contact, pressed steel cage, shields on both sides

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.


CAD file

Technical datasheet

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Internal diameter d 55 mm
External diameter D 120 mm
Bearing/Inner ring width(B) 29 mm
Min fillet radius rs 2 mm
Radial clearance class C4
Mass 1,37 kg
Brand NTN
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Dynamic load, C 79,5 kN
Static load, C0 45 kN
Fatigue limit load, Cu 3,5 kN
Coefficient f0 13.2
Nlim (grease) 5800 tr/min
Min operating temperature, Tmin -40 °C
Max operating temperature, Tmax 150 °C
Characteristic cage frequency, FTF 0,384 Hz
Characteristic rolling element frequency, BSF 4,081 Hz
Characteristic outer ring frequency, BPF0 3,072 Hz
Characteristic inner ring frequency, BPFI 4,928 Hz


Min shoulder diameter IR da min 64 mm
Max shoulder diameter OR Da max 111 mm
Max shaft & housing fillet radius ra max 2 mm
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