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Single row tapered roller bearings

4T-J90354/J90748 - NTN

4T-J90354/J90748

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 diameter90 mm
D - External diameter190 mm
B - Bearing/Inner ring width46,038 mm
C - Outer ring width31,75 mm
T - Total width50,8 mm
d1 - External diameter inner ring145,5 mm
rs - Min fillet radius3,5 mm
r1s - Min fillet radius3,3 mm
Mass6,32 kg
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PRODUCT PERFORMANCE
C - Dynamic load310 kN
C0 - Static load365 kN
Cu - Fatigue limit load40,1 kN
A2 - Rating life coefficient1
e - Coefficient0.87
Y0 - Static axial load coefficient0.38
Y2 - Upper axial load coefficient0.69
N lim - Oil lubrication limit speed2400 tr/min
N lim - Grease lubrication limit speed1800 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da max - Max shoulder diameter IR112 mm
db min - Min IR shoulder diameter120 mm
Da max - Max shoulder diameter OR162 mm
Db min - Min OR shoulder diameter179 mm
ra max - Max fillet radius3,5 mm
r1a - Max fillet radius3,3 mm
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