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4T-30207 - NTN

4T-30207

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 diameter72 mm
B - Bearing/Inner ring width17 mm
C - Outer ring width15 mm
T - Total width18,25 mm
d1 - External diameter inner ring52,5 mm
a - Charge load application point15 mm
rs - Min fillet radius1,5 mm
r1s - Min fillet radius1,5 mm
Mass0,341 kg
ISO 355 referenceT3DB035
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PRODUCT PERFORMANCE
C - Dynamic load61,5 kN
C0 - Static load61,5 kN
Cu - Fatigue limit load7,5 kN
A2 - Rating life coefficient1
e - Coefficient0.37
Y0 - Static axial load coefficient0.88
Y2 - Upper axial load coefficient1.6
N lim - Oil lubrication limit speed7400 tr/min
N lim - Grease lubrication limit speed5500 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da max - Max shoulder diameter IR44 mm
db min - Min IR shoulder diameter43,5 mm
Da min - Min shoulder diameter OR62 mm
Da max - Max shoulder diameter OR63,5 mm
Db min - Min OR shoulder diameter67 mm
Ca - Min clearance3 mm
Cb - Min clearance3 mm
ra max - Max fillet radius1,5 mm
r1a - Max fillet radius1,5 mm
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