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4T-30310D - NTN

4T-30310D

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 diameter50 mm
D - External diameter110 mm
B - Bearing/Inner ring width27 mm
C - Outer ring width19 mm
T - Total width29,25 mm
d1 - External diameter inner ring81,5 mm
a - Charge load application point35 mm
rs - Min fillet radius2,5 mm
r1s - Min fillet radius2 mm
Mass1,25 kg
ISO 355 referenceT7FB050
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PRODUCT PERFORMANCE
C - Dynamic load126 kN
C0 - Static load130 kN
Cu - Fatigue limit load15,9 kN
A2 - Rating life coefficient1
e - Coefficient0.83
Y0 - Static axial load coefficient0.4
Y2 - Upper axial load coefficient0.73
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 diameter62 mm
Da min - Min shoulder diameter OR87 mm
Da max - Max shoulder diameter OR100 mm
Db min - Min OR shoulder diameter105 mm
Ca - Min clearance3 mm
Cb - Min clearance10 mm
ra max - Max fillet radius2 mm
r1a - Max fillet radius2 mm
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