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Single row tapered roller bearings

4T-44150/44348 - NTN

4T-44150/44348

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 diameter38,1 mm
D - External diameter88,5 mm
B - Bearing/Inner ring width23,698 mm
C - Outer ring width17,462 mm
T - Total width25,4 mm
d1 - External diameter inner ring66 mm
a - Charge load application point28,3 mm
Mass0,714 kg
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PRODUCT PERFORMANCE
C - Dynamic load78,5 kN
C0 - Static load78 kN
Cu - Fatigue limit load9,5 kN
A2 - Rating life coefficient1
e - Coefficient0.78
Y0 - Static axial load coefficient0.42
Y2 - Upper axial load coefficient0.77
N lim - Oil lubrication limit speed5300 tr/min
N lim - Grease lubrication limit speed4000 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da max - Max shoulder diameter IR51 mm
db min - Min IR shoulder diameter55 mm
Da max - Max shoulder diameter OR75 mm
Db min - Min OR shoulder diameter84 mm
ra max - Max fillet radius2,3 mm
r1a - Max fillet radius1,5 mm
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