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6821ZZ/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 105 mm
External diameter D 130 mm
Bearing/Inner ring width(B) 13 mm
Min fillet radius rs 1 mm
Radial clearance class CN
Mass 0,33 kg
Brand NTN
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Dynamic load, C 22 kN
Static load, C0 22 kN
Fatigue limit load, Cu 1,35 kN
Coefficient f0 15.9
Nlim (grease) 4600 tr/min
Min operating temperature, Tmin -40 °C
Max operating temperature, Tmax 150 °C
Characteristic cage frequency, FTF 0,47 Hz
Characteristic rolling element frequency, BSF 16,387 Hz
Characteristic outer ring frequency, BPF0 12,679 Hz
Characteristic inner ring frequency, BPFI 14,321 Hz


Min shoulder diameter IR da min 110 mm
Max shoulder diameter OR Da max 125 mm
Max shaft & housing fillet radius ra max 1 mm
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