21310V - 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) 50 mm
External diameter (D) 110 mm
Bearing/Inner ring width (B) 27 mm
External diameter inner ring (d2) 66,8 mm
Inner diameter outer ring (D1) 92,4 mm
Min fillet radius (rs) 2 mm
Number of lubrication holes 0
Groove width (b) 0 mm
Hole diameter (k) 0 mm
Coef (e) 0.25
Lower axial load coef (Y1) 2.71
Upper axial load coef (Y2) 4.04
Static axial load coef (Y0) 2.65
Radial clearance class CN
Mass 1,251 kg
Brand SNR
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Dynamic load (C) 142 kN
Static load (C0) 134 kN
Fatigue limit load (Cu) 16,3 kN
Reference thermal speed (Nref) 5400 tr/min
Mechanical Limit Speed (Nlim) 7600 tr/min
Min operating temperature (Tmin) -40 °C
Max operating temperature (Tmax) 200 °C


Max shoulder diameter IR (da max) 0 mm
Min shoulder diameter IR (da min) 61 mm
Max shoulder diameter OR (Da max) 99 mm
Max shaft & housing fillet radius (ra max) 2 mm
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