4T-33111 - 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.


Technical datasheet

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Internal diameter d 55 mm
External diameter D 95 mm
Bearing/Inner ring width(B) 30 mm
Outer ring width (C ) 23 mm
Total width (T) 30 mm
External diameter inner ring d1 75,5 mm
Charge load application point a 22 mm
Min fillet radius rs 1,5 mm
Min fillet radius r1s 1,5 mm
Coef e 0.37
Upper axial load coef (Y2) 1.6
Static axial load coef (Y0) 0.88
Mass 0,858 kg
ISO 355 reference T3CE055
Brand NTN
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Dynamic load, C 123 kN
Rating life coefficient, A2 1.0
Static load, C0 155 kN
Fatigue limit load, Cu 18,9 kN
Nlim (oil) 5200 tr/min
Nlim (grease) 3900 tr/min
Min operating temperature, Tmin -40 °C
Max operating temperature, Tmax 120 °C
Characteristic cage frequency, FTF 0,436 Hz
Characteristic rolling element frequency, BSF 7,49 Hz
Characteristic outer ring frequency, BPF0 9,162 Hz
Characteristic inner ring frequency, BPFI 11,838 Hz


Max shoulder diameter IR da max 62 mm
Min IR shoulder diameter (db min) 63,5 mm
Min shoulder diameter OR Da min 83 mm
Max shoulder diameter OR Da max 86,5 mm
Min OR shoulder diameter Db min 91 mm
Min clearance Ca 5 mm
Min clearance Cb 7 mm
Max fillet radius ra max 1,5 mm
Maxi fillet radius r1a 1,5 mm
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