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21316VC3 - SNR


Spherical roller bearing, pressed steel cage

The spherical roller bearing withstands significant loads and misalignments. This type of roller bearing is well adapted to harsh operating conditions: impacts or vibrations (crushers, vibrating screens, heavy handling, etc.). With the ULTAGE design, NTN-SNR offers as standard, unsurpassed endurance and longevity.


CAD file

Technical datasheet

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Internal diameter d 80 mm
External diameter D 170 mm
Bearing/Inner ring width(B) 39 mm
External diameter inner ring d2 104,3 mm
Inner diameter outer ring D1 144,6 mm
Min fillet radius rs 2,1 mm
Number of lubrication holes 0
Groove width (b) 0 mm
Hole diameter (k) 0 mm
Coef e 0.23
Lower axial load coef (Y1) 2.95
Upper axial load coef (Y2) 4.39
Static axial load coef (Y0) 2.89
Radial clearance class C3
Mass 4,26 kg
Brand SNR
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Dynamic load, C 300 kN
Static load, C0 296 kN
Fatigue limit load, Cu 33,6 kN
Reference thermal speed (Nref) 3800 tr/min
Mechanical Limit Speed Nlim 4900 tr/min
Min operating temperature, Tmin -40 °C
Max operating temperature, Tmax 200 °C
Characteristic cage frequency, FTF 0,418 Hz
Characteristic rolling element frequency, BSF 5,871 Hz
Characteristic outer ring frequency, BPF0 6,271 Hz
Characteristic inner ring frequency, BPFI 8,729 Hz


Max shoulder diameter IR da max 0 mm
Min shoulder diameter IR da min 92 mm
Max shoulder diameter OR Da max 158 mm
Max shaft & housing fillet radius ra max 2 mm
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