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Single row tapered roller bearings

4T-55187C/55443 - NTN

4T-55187C/55443

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 diameter47,625 mm
D - External diameter112,712 mm
B - Bearing/Inner ring width26,909 mm
C - Outer ring width20,638 mm
T - Total width30,162 mm
a - Charge load application point37,2 mm
rs - Min fillet radius3,5 mm
r1s - Min fillet radius3,3 mm
Mass1,45 kg
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PRODUCT PERFORMANCE
C - Dynamic load91,5 kN
C0 - Static load108 kN
A2 - Rating life coefficient1
e - Coefficient0.88
Y0 - Static axial load coefficient0.37
Y2 - Upper axial load coefficient0.68
N lim - Oil lubrication limit speed4200 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 IR62 mm
db min - Min IR shoulder diameter69 mm
Da max - Max shoulder diameter OR106 mm
Db min - Min OR shoulder diameter92 mm
ra max - Max fillet radius3,5 mm
r1a - Max fillet radius3,3 mm
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