4T-14125A/14274 - NTN


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.


3D file

Technical datasheet

KitThis kit contains the following reference(s) - 4T-14274 - 4T-14125A
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Internal diameter (d) 31,75 mm
External diameter (D) 69,012 mm
Bearing/Inner ring width (B) 19,583 mm
Outer ring width (C ) 15,875 mm
Total width (T) 19,845 mm
Charge load application point a 15,7 mm
Min fillet radius (rs) 3,5 mm
Min fillet radius r1s 3,3 mm
Coef (e) 0.38
Upper axial load coef (Y2) 1.57
Static axial load coef (Y0) 0.86
Mass 0,352 kg
Brand NTN
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Dynamic load (C) 53,5 kN
Rating life coefficient, A2 1
Static load (C0) 58 kN
Nlim (oil) 7400 tr/min
Nlim (grease) 5600 tr/min
Min operating temperature (Tmin) -40 °C
Max operating temperature (Tmax) 120 °C
Characteristic cage frequency, FTF 0,43 Hz
Characteristic rolling element frequency, BSF 6,817 Hz
Characteristic outer ring frequency, BPF0 7,745 Hz
Characteristic inner ring frequency, BPFI 10,255 Hz


Max shoulder diameter IR (da max) 38,5 mm
Min IR shoulder diameter (db min) 44,5 mm
Max shoulder diameter OR (Da max) 59 mm
Min OR shoulder diameter Db min 63 mm
Max fillet radius ra max 3,5 mm
Maxi fillet radius r1a 3,3 mm
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