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Single row tapered roller bearings

4T-HH228340/HH228318V4 - NTN

4T-HH228340/HH228318V4

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.

Documentation

Product information

PRODUCT DEFINITION
BrandNTN
d - Internal diameter120,65 mm
D - External diameter259,974 mm
B - Bearing/Inner ring width82,55 mm
C - Outer ring width61,912 mm
T - Total width77,788 mm
a - Charge load application point54,4 mm
rs - Min fillet radius9,7 mm
r1s - Min fillet radius4 mm
Mass19,42 kg
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PRODUCT PERFORMANCE
C - Dynamic load820 kN
C0 - Static load1070 kN
A2 - Rating life coefficient1
e - Coefficient0.32
Y0 - Static axial load coefficient1.03
Y2 - Upper axial load coefficient1.87
N lim - Oil lubrication limit speed1900 tr/min
N lim - Grease lubrication limit speed1400 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da max - Max shoulder diameter IR142 mm
db min - Min IR shoulder diameter158 mm
Da max - Max shoulder diameter OR234 mm
Db min - Min OR shoulder diameter223 mm
ra max - Max fillet radius9,7 mm
r1a - Max fillet radius6,4 mm
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