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Single row tapered roller bearings

4T-683/672 - NTN

4T-683/672

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 diameter95,25 mm
D - External diameter168,275 mm
B - Bearing/Inner ring width41,275 mm
C - Outer ring width30,162 mm
T - Total width41,275 mm
d1 - External diameter inner ring133,5 mm
a - Charge load application point38,275 mm
Mass3,72 kg
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PRODUCT PERFORMANCE
C - Dynamic load247 kN
C0 - Static load340 kN
Cu - Fatigue limit load38,1 kN
A2 - Rating life coefficient1
e - Coefficient0.47
Y0 - Static axial load coefficient0.7
Y2 - Upper axial load coefficient1.28
N lim - Oil lubrication limit speed2800 tr/min
N lim - Grease lubrication limit speed2100 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da max - Max shoulder diameter IR106 mm
db min - Min IR shoulder diameter113 mm
Da max - Max shoulder diameter OR149 mm
Db min - Min OR shoulder diameter160 mm
ra max - Max fillet radius3,5 mm
r1a - Max fillet radius3,3 mm
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