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4T-3490/3420 - NTN

4T-3490/3420

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.

This kit contains the following reference(s)

Documentation

Product information

PRODUCT DEFINITION
BrandNTN
d - Internal diameter38,1 mm
D - External diameter79,375 mm
B - Bearing/Inner ring width29,771 mm
C - Outer ring width23,812 mm
T - Total width29,37 mm
d1 - External diameter inner ring57,5 mm
a - Charge load application point20,67 mm
Mass0,688 kg
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PRODUCT PERFORMANCE
C - Dynamic load103 kN
C0 - Static load114 kN
Cu - Fatigue limit load13,9 kN
A2 - Rating life coefficient1
e - Coefficient0.37
Y0 - Static axial load coefficient0.9
Y2 - Upper axial load coefficient1.64
N lim - Oil lubrication limit speed6600 tr/min
N lim - Grease lubrication limit speed4900 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da max - Max shoulder diameter IR45,5 mm
db min - Min IR shoulder diameter52 mm
Da max - Max shoulder diameter OR67 mm
Db min - Min OR shoulder diameter74 mm
ra max - Max fillet radius3,5 mm
r1a - Max fillet radius3,3 mm
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