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Single row tapered roller bearings

4T-3386/3320 - NTN

4T-3386/3320

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 diameter39,688 mm
D - External diameter80,167 mm
B - Bearing/Inner ring width30,391 mm
C - Outer ring width23,812 mm
T - Total width29,37 mm
d1 - External diameter inner ring58 mm
a - Charge load application point18,17 mm
Mass0,672 kg
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PRODUCT PERFORMANCE
C - Dynamic load105 kN
C0 - Static load112 kN
Cu - Fatigue limit load13,7 kN
A2 - Rating life coefficient1
e - Coefficient0.27
Y0 - Static axial load coefficient1.21
Y2 - Upper axial load coefficient2.2
N lim - Oil lubrication limit speed6400 tr/min
N lim - Grease lubrication limit speed4800 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 diameter46,5 mm
Da max - Max shoulder diameter OR70 mm
Db min - Min OR shoulder diameter75 mm
ra max - Max fillet radius0,8 mm
r1a - Max fillet radius3,3 mm
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