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Single row tapered roller bearings

4T-47490/47420 - NTN

4T-47490/47420

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 diameter71,438 mm
D - External diameter120 mm
B - Bearing/Inner ring width32,545 mm
C - Outer ring width26,195 mm
T - Total width32,545 mm
d1 - External diameter inner ring95 mm
a - Charge load application point26,445 mm
Mass1,42 kg
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PRODUCT PERFORMANCE
C - Dynamic load163 kN
C0 - Static load214 kN
Cu - Fatigue limit load26,1 kN
A2 - Rating life coefficient1
e - Coefficient0.36
Y0 - Static axial load coefficient0.92
Y2 - Upper axial load coefficient1.67
N lim - Oil lubrication limit speed4000 tr/min
N lim - Grease lubrication limit speed3000 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da max - Max shoulder diameter IR79 mm
db min - Min IR shoulder diameter86 mm
Da max - Max shoulder diameter OR107 mm
Db min - Min OR shoulder diameter114 mm
ra max - Max fillet radius3,5 mm
r1a - Max fillet radius3,3 mm
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