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4T-LM104949/LM104911 - NTN

4T-LM104949/LM104911

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.

This kit contains the following reference(s)

Documentation

Product information

PRODUCT DEFINITION
BrandNTN
d - Internal diameter50,8 mm
D - External diameter82,55 mm
B - Bearing/Inner ring width22,225 mm
C - Outer ring width16,51 mm
T - Total width21,59 mm
d1 - External diameter inner ring65,5 mm
a - Charge load application point15,79 mm
Mass0,418 kg
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PRODUCT PERFORMANCE
C - Dynamic load77,5 kN
C0 - Static load94 kN
Cu - Fatigue limit load11,5 kN
A2 - Rating life coefficient1
e - Coefficient0.31
Y0 - Static axial load coefficient1.08
Y2 - Upper axial load coefficient1.97
N lim - Oil lubrication limit speed5700 tr/min
N lim - Grease lubrication limit speed4300 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da max - Max shoulder diameter IR55 mm
db min - Min IR shoulder diameter62 mm
Da max - Max shoulder diameter OR75 mm
Db min - Min OR shoulder diameter78 mm
ra max - Max fillet radius3,5 mm
r1a - Max fillet radius1,3 mm
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