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4T-30303 - NTN

4T-30303

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 diameter17 mm
D - External diameter47 mm
B - Bearing/Inner ring width14 mm
C - Outer ring width12 mm
T - Total width15,25 mm
d1 - External diameter inner ring31 mm
a - Charge load application point10,5 mm
rs - Min fillet radius1 mm
r1s - Min fillet radius1 mm
Mass0,132 kg
ISO 355 referenceT2FB017
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PRODUCT PERFORMANCE
C - Dynamic load32 kN
C0 - Static load26,3 kN
Cu - Fatigue limit load3,2 kN
A2 - Rating life coefficient1
e - Coefficient0.29
Y0 - Static axial load coefficient1.16
Y2 - Upper axial load coefficient2.11
N lim - Oil lubrication limit speed12000 tr/min
N lim - Grease lubrication limit speed9000 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da max - Max shoulder diameter IR24 mm
db min - Min IR shoulder diameter22,5 mm
Da min - Min shoulder diameter OR40 mm
Da max - Max shoulder diameter OR41,5 mm
Db min - Min OR shoulder diameter42 mm
Ca - Min clearance3 mm
Cb - Min clearance3,5 mm
ra max - Max fillet radius1 mm
r1a - Max fillet radius1 mm
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