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4T-30309 - NTN

4T-30309

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 diameter45 mm
D - External diameter100 mm
B - Bearing/Inner ring width25 mm
C - Outer ring width22 mm
T - Total width27,25 mm
d1 - External diameter inner ring71 mm
a - Charge load application point21 mm
rs - Min fillet radius2 mm
r1s - Min fillet radius1,5 mm
Mass1,01 kg
ISO 355 referenceT2FB045
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PRODUCT PERFORMANCE
C - Dynamic load123 kN
C0 - Static load126 kN
Cu - Fatigue limit load15,4 kN
A2 - Rating life coefficient1
e - Coefficient0.35
Y0 - Static axial load coefficient0.96
Y2 - Upper axial load coefficient1.74
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 IR59 mm
db min - Min IR shoulder diameter55 mm
Da min - Min shoulder diameter OR86 mm
Da max - Max shoulder diameter OR91,5 mm
Db min - Min OR shoulder diameter93 mm
Ca - Min clearance3 mm
Cb - Min clearance5 mm
ra max - Max fillet radius2 mm
r1a - Max fillet radius1,5 mm
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