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6304 - 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.


CAD file

Technical datasheet

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Internal diameter d 20 mm
External diameter D 52 mm
Bearing/Inner ring width(B) 15 mm
External diameter inner ring d1 27,5 mm
Inner diameter outer ring D1 44 mm
Min fillet radius rs 1,1 mm
Radial clearance class CN
Mass 0,141 kg
Brand SNR
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Dynamic load, C 15,8 kN
Static load, C0 7,9 kN
Fatigue limit load, Cu 0,36 kN
Coefficient f0 12.4
Reference thermal speed (Nref) 14000 tr/min
Mechanical Limit Speed Nlim 24000 tr/min
Min operating temperature, Tmin -40 °C
Max operating temperature, Tmax 120 °C
Characteristic cage frequency, FTF 0,367 Hz
Characteristic rolling element frequency, BSF 3,483 Hz
Characteristic outer ring frequency, BPF0 2,566 Hz
Characteristic inner ring frequency, BPFI 4,434 Hz


Min shoulder diameter IR da min 26,5 mm
Max shoulder diameter IR da max 0 mm
Max shoulder diameter OR Da max 45,5 mm
Max shaft & housing fillet radius ra max 1 mm
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