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4T-24780/24720 - NTN

4T-24780/24720

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 diameter41,275 mm
D - External diameter76,2 mm
B - Bearing/Inner ring width23,02 mm
C - Outer ring width17,462 mm
T - Total width22,225 mm
d1 - External diameter inner ring58,3 mm
a - Charge load application point17,725 mm
Mass0,435 kg
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PRODUCT PERFORMANCE
C - Dynamic load72 kN
C0 - Static load80,5 kN
Cu - Fatigue limit load9,8 kN
A2 - Rating life coefficient1
e - Coefficient0.39
Y0 - Static axial load coefficient0.84
Y2 - Upper axial load coefficient1.53
N lim - Oil lubrication limit speed6500 tr/min
N lim - Grease lubrication limit speed4900 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da max - Max shoulder diameter IR47 mm
db min - Min IR shoulder diameter54 mm
Da max - Max shoulder diameter OR68 mm
Db min - Min OR shoulder diameter72 mm
ra max - Max fillet radius3,5 mm
r1a - Max fillet radius0,8 mm
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OE Equivalents

ManufacturerReferenceZF0750.117.289

Industry Calcul Factors

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