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Single row tapered roller bearings

4T-LM29748/LM29710 - NTN

4T-LM29748/LM29710

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 diameter38,1 mm
D - External diameter65,088 mm
B - Bearing/Inner ring width18,288 mm
C - Outer ring width13,97 mm
T - Total width18,034 mm
d1 - External diameter inner ring52 mm
a - Charge load application point13,734 mm
Mass0,227 kg
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PRODUCT PERFORMANCE
C - Dynamic load48 kN
C0 - Static load57 kN
Cu - Fatigue limit load7 kN
A2 - Rating life coefficient1
e - Coefficient0.33
Y0 - Static axial load coefficient0.99
Y2 - Upper axial load coefficient1.8
N lim - Oil lubrication limit speed7400 tr/min
N lim - Grease lubrication limit speed5500 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da max - Max shoulder diameter IR42,5 mm
db min - Min IR shoulder diameter49 mm
Da max - Max shoulder diameter OR59 mm
Db min - Min OR shoulder diameter62 mm
ra max - Max fillet radius3,94 mm
r1a - Max fillet radius1,3 mm
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