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4T-3984/3920 - NTN

4T-3984/3920

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 diameter66,675 mm
D - External diameter112,712 mm
B - Bearing/Inner ring width30,048 mm
C - Outer ring width23,812 mm
T - Total width30,162 mm
d1 - External diameter inner ring88,5 mm
a - Charge load application point25,662 mm
rs - Min fillet radius3,5 mm
r1s - Min fillet radius3,3 mm
Mass1,18 kg
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PRODUCT PERFORMANCE
C - Dynamic load132 kN
C0 - Static load174 kN
Cu - Fatigue limit load21,2 kN
A2 - Rating life coefficient1
e - Coefficient0.4
Y0 - Static axial load coefficient0.82
Y2 - Upper axial load coefficient1.49
N lim - Oil lubrication limit speed4300 tr/min
N lim - Grease lubrication limit speed3200 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da max - Max shoulder diameter IR74 mm
db min - Min IR shoulder diameter80 mm
Da max - Max shoulder diameter OR99 mm
Db min - Min OR shoulder diameter106 mm
ra max - Max fillet radius3,5 mm
r1a - Max fillet radius3,3 mm
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