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30230U - NTN

30230U

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 diameter150 mm
D - External diameter270 mm
B - Bearing/Inner ring width45 mm
C - Outer ring width38 mm
T - Total width49 mm
d1 - External diameter inner ring203,5 mm
a - Charge load application point51,5 mm
rs - Min fillet radius4 mm
r1s - Min fillet radius3 mm
Mass11 kg
ISO 355 referenceT4GB150
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PRODUCT PERFORMANCE
C - Dynamic load500 kN
C0 - Static load605 kN
Cu - Fatigue limit load59 kN
A2 - Rating life coefficient1
e - Coefficient0.44
Y0 - Static axial load coefficient0.76
Y2 - Upper axial load coefficient1.38
N lim - Oil lubrication limit speed1700 tr/min
N lim - Grease lubrication limit speed1300 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da max - Max shoulder diameter IR175 mm
db min - Min IR shoulder diameter168 mm
Da min - Min shoulder diameter OR234 mm
Da max - Max shoulder diameter OR256 mm
Db min - Min OR shoulder diameter255 mm
Ca - Min clearance7 mm
Cb - Min clearance11 mm
ra max - Max fillet radius3 mm
r1a - Max fillet radius2,5 mm
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