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Single row tapered roller bearings

4T-1380/1328 - NTN

4T-1380/1328

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 diameter22,225 mm
D - External diameter52,388 mm
B - Bearing/Inner ring width20,168 mm
C - Outer ring width14,288 mm
T - Total width19,368 mm
d1 - External diameter inner ring36,5 mm
a - Charge load application point11,968 mm
Mass0,196 kg
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PRODUCT PERFORMANCE
C - Dynamic load45 kN
C0 - Static load43 kN
Cu - Fatigue limit load5,2 kN
A2 - Rating life coefficient1
e - Coefficient0.29
Y0 - Static axial load coefficient1.13
Y2 - Upper axial load coefficient2.05
N lim - Oil lubrication limit speed10000 tr/min
N lim - Grease lubrication limit speed7600 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da max - Max shoulder diameter IR27 mm
db min - Min IR shoulder diameter29,5 mm
Da max - Max shoulder diameter OR45 mm
Db min - Min OR shoulder diameter48,5 mm
ra max - Max fillet radius1,5 mm
r1a - Max fillet radius1,5 mm
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