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Single row tapered roller bearings

4T-2789/2729 - NTN

4T-2789/2729

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 diameter39,688 mm
D - External diameter76,2 mm
B - Bearing/Inner ring width25,654 mm
C - Outer ring width19,05 mm
T - Total width23,812 mm
d1 - External diameter inner ring55 mm
a - Charge load application point16 mm
rs - Min fillet radius3,5 mm
r1s - Min fillet radius0,8 mm
Mass0,48 kg
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PRODUCT PERFORMANCE
C - Dynamic load81 kN
C0 - Static load90,5 kN
A2 - Rating life coefficient1
e - Coefficient0.3
Y0 - Static axial load coefficient1.09
Y2 - Upper axial load coefficient1.98
N lim - Oil lubrication limit speed6800 tr/min
N lim - Grease lubrication limit speed5100 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da max - Max shoulder diameter IR45 mm
db min - Min IR shoulder diameter52 mm
Da max - Max shoulder diameter OR70 mm
Db min - Min OR shoulder diameter68 mm
ra max - Max fillet radius3,5 mm
r1a - Max fillet radius0,8 mm
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OE Equivalents

ManufacturerReferenceZF0735 300 762ZF0735 370 438ZF0735 371 811ZF0750 117 198Volvo1699893Iveco7984452

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