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4T-LM72849/LM72810PX1 - NTN

4T-LM72849/LM72810PX1

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 diameter22,606 mm
D - External diameter47 mm
B - Bearing/Inner ring width15,5 mm
C - Outer ring width12 mm
T - Total width15,5 mm
d1 - External diameter inner ring35,5 mm
a - Charge load application point12,5 mm
rs - Min fillet radius1,5 mm
r1s - Min fillet radius1 mm
Mass0,125 kg
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PRODUCT PERFORMANCE
C - Dynamic load27,5 kN
C0 - Static load32,5 kN
A2 - Rating life coefficient1
e - Coefficient0.47
Y0 - Static axial load coefficient0.7
Y2 - Upper axial load coefficient1.27
N lim - Oil lubrication limit speed11000 tr/min
N lim - Grease lubrication limit speed8200 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da max - Max shoulder diameter IR28 mm
db min - Min IR shoulder diameter30 mm
Da max - Max shoulder diameter OR40,5 mm
Db min - Min OR shoulder diameter44 mm
ra max - Max fillet radius1,5 mm
r1a - Max fillet radius1,5 mm
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