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4T-387A/382A - NTN

4T-387A/382A

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 diameter57,15 mm
D - External diameter96,838 mm
B - Bearing/Inner ring width21,946 mm
C - Outer ring width15,875 mm
T - Total width21 mm
d1 - External diameter inner ring75 mm
a - Charge load application point17,9 mm
rs - Min fillet radius3,5 mm
r1s - Min fillet radius0,8 mm
Mass0,58 kg
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PRODUCT PERFORMANCE
C - Dynamic load86,5 kN
C0 - Static load96,5 kN
Cu - Fatigue limit load11,8 kN
A2 - Rating life coefficient1
e - Coefficient0.35
Y0 - Static axial load coefficient0.93
Y2 - Upper axial load coefficient1.69
N lim - Oil lubrication limit speed5000 tr/min
N lim - Grease lubrication limit speed3700 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da max - Max shoulder diameter IR62 mm
db min - Min IR shoulder diameter69 mm
Da max - Max shoulder diameter OR89 mm
Db min - Min OR shoulder diameter92 mm
ra max - Max fillet radius3,5 mm
r1a - Max fillet radius0,8 mm
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