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Single row tapered roller bearings

4T-36990/36920 - NTN

4T-36990/36920

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 diameter177,8 mm
D - External diameter227,012 mm
B - Bearing/Inner ring width30,162 mm
C - Outer ring width23,02 mm
T - Total width30,162 mm
d1 - External diameter inner ring205 mm
a - Charge load application point42,962 mm
Mass2,91 kg
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PRODUCT PERFORMANCE
C - Dynamic load201 kN
C0 - Static load415 kN
Cu - Fatigue limit load40,9 kN
A2 - Rating life coefficient1
e - Coefficient0.44
Y0 - Static axial load coefficient0.75
Y2 - Upper axial load coefficient1.36
N lim - Oil lubrication limit speed1800 tr/min
N lim - Grease lubrication limit speed1300 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da max - Max shoulder diameter IR186 mm
db min - Min IR shoulder diameter188 mm
Da max - Max shoulder diameter OR214 mm
Db min - Min OR shoulder diameter221 mm
ra max - Max fillet radius1,5 mm
r1a - Max fillet radius1,5 mm
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