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Single row tapered roller bearings

4T-M903345/M903310 - NTN

4T-M903345/M903310

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 diameter92,075 mm
B - Bearing/Inner ring width23,812 mm
C - Outer ring width16,67 mm
T - Total width26,195 mm
d1 - External diameter inner ring69,5 mm
a - Charge load application point29,795 mm
Mass0,758 kg
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PRODUCT PERFORMANCE
C - Dynamic load80,5 kN
C0 - Static load81,5 kN
Cu - Fatigue limit load9,9 kN
A2 - Rating life coefficient1
e - Coefficient0.83
Y0 - Static axial load coefficient0.4
Y2 - Upper axial load coefficient0.72
N lim - Oil lubrication limit speed5000 tr/min
N lim - Grease lubrication limit speed3800 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da max - Max shoulder diameter IR54 mm
db min - Min IR shoulder diameter60 mm
Da max - Max shoulder diameter OR78 mm
Db min - Min OR shoulder diameter88 mm
ra max - Max fillet radius3,5 mm
r1a - Max fillet radius1,5 mm
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