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32304A - SNR


Tapered roller bearing, pressed steel cage

The single row tapered roller bearing is available in metric dimensions (ISO 355 and JIS B 1512 standards) and in inches (ABMA standard, metric series including J). The single row in tapered roller bearing range, is the most widely used and is generally mounted in opposition.


CAD file

Technical datasheet

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Internal diameter d 20 mm
External diameter D 52 mm
Bearing/Inner ring width(B) 21 mm
Outer ring width (C ) 18 mm
Total width (T) 22,25 mm
External diameter inner ring d1 34,8 mm
Charge load application point a 13,6 mm
Min fillet radius rs 1,5 mm
Min fillet radius r1s 1,5 mm
Coef e 0.3
Upper axial load coef (Y2) 2.0
Static axial load coef (Y0) 1.1
Mass 0,23 kg
ISO 355 reference T2FD020
Brand SNR
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Dynamic load, C 44,9 kN
Rating life coefficient, A2 1.0
Static load, C0 46,6 kN
Fatigue limit load, Cu 5,7 kN
Reference thermal speed (Nref) 9300 tr/min
Mechanical Limit Speed Nlim 15000 tr/min
Min operating temperature, Tmin -40 °C
Max operating temperature, Tmax 120 °C
Characteristic cage frequency, FTF 0,394 Hz
Characteristic rolling element frequency, BSF 4,42 Hz
Characteristic outer ring frequency, BPF0 5,123 Hz
Characteristic inner ring frequency, BPFI 7,877 Hz


Max shoulder diameter IR da max 27 mm
Min IR shoulder diameter (db min) 28,5 mm
Min shoulder diameter OR Da min 43 mm
Max shoulder diameter OR Da max 43,5 mm
Min OR shoulder diameter Db min 47 mm
Min clearance Ca 3 mm
Min clearance Cb 4 mm
Max fillet radius ra max 1,5 mm
Maxi fillet radius r1a 1,5 mm
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