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4T-LM102949/LM102910 - NTN

4T-LM102949/LM102910

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 diameter45,242 mm
D - External diameter73,431 mm
B - Bearing/Inner ring width19,812 mm
C - Outer ring width15,748 mm
T - Total width19,558 mm
d1 - External diameter inner ring59,5 mm
a - Charge load application point14,858 mm
Mass0,309 kg
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PRODUCT PERFORMANCE
C - Dynamic load60 kN
C0 - Static load76 kN
Cu - Fatigue limit load9,3 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 speed6400 tr/min
N lim - Grease lubrication limit speed4800 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da max - Max shoulder diameter IR50 mm
db min - Min IR shoulder diameter56 mm
Da max - Max shoulder diameter OR68 mm
Db min - Min OR shoulder diameter70 mm
ra max - Max fillet radius3,5 mm
r1a - Max fillet radius0,8 mm
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