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4T-L68149/L68111 - NTN

4T-L68149/L68111

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 diameter34,988 mm
D - External diameter59,974 mm
B - Bearing/Inner ring width16,764 mm
C - Outer ring width11,938 mm
T - Total width15,875 mm
d1 - External diameter inner ring48 mm
a - Charge load application point13,375 mm
Mass0,179 kg
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PRODUCT PERFORMANCE
C - Dynamic load35,5 kN
C0 - Static load47,5 kN
Cu - Fatigue limit load5,8 kN
A2 - Rating life coefficient1
e - Coefficient0.42
Y0 - Static axial load coefficient0.79
Y2 - Upper axial load coefficient1.44
N lim - Oil lubrication limit speed8100 tr/min
N lim - Grease lubrication limit speed6100 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da max - Max shoulder diameter IR39 mm
db min - Min IR shoulder diameter45,5 mm
Da max - Max shoulder diameter OR53 mm
Db min - Min OR shoulder diameter56 mm
ra max - Max fillet radius3,94 mm
r1a - Max fillet radius1,3 mm
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