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4T-30307 - NTN

4T-30307

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 diameter35 mm
D - External diameter80 mm
B - Bearing/Inner ring width21 mm
C - Outer ring width18 mm
T - Total width22,75 mm
d1 - External diameter inner ring55,5 mm
a - Charge load application point17 mm
rs - Min fillet radius2 mm
r1s - Min fillet radius1,5 mm
Mass0,535 kg
ISO 355 referenceT2FB035
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PRODUCT PERFORMANCE
C - Dynamic load83 kN
C0 - Static load77 kN
Cu - Fatigue limit load9,4 kN
A2 - Rating life coefficient1
e - Coefficient0.31
Y0 - Static axial load coefficient1.05
Y2 - Upper axial load coefficient1.9
N lim - Oil lubrication limit speed6600 tr/min
N lim - Grease lubrication limit speed5000 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da max - Max shoulder diameter IR45 mm
db min - Min IR shoulder diameter45 mm
Da min - Min shoulder diameter OR70 mm
Da max - Max shoulder diameter OR71,5 mm
Db min - Min OR shoulder diameter74 mm
Ca - Min clearance3 mm
Cb - Min clearance4,5 mm
ra max - Max fillet radius2 mm
r1a - Max fillet radius1,5 mm
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