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Single row tapered roller bearings

4T-HM903245/HM903210 - NTN

4T-HM903245/HM903210

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 diameter95,25 mm
B - Bearing/Inner ring width28,575 mm
C - Outer ring width22,225 mm
T - Total width30,958 mm
d1 - External diameter inner ring71,5 mm
a - Charge load application point31,358 mm
Mass1,05 kg
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PRODUCT PERFORMANCE
C - Dynamic load107 kN
C0 - Static load116 kN
Cu - Fatigue limit load14,1 kN
A2 - Rating life coefficient1
e - Coefficient0.74
Y0 - Static axial load coefficient0.45
Y2 - Upper axial load coefficient0.81
N lim - Oil lubrication limit speed4900 tr/min
N lim - Grease lubrication limit speed3700 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 diameter63 mm
Da max - Max shoulder diameter OR81 mm
Db min - Min OR shoulder diameter91 mm
ra max - Max fillet radius3,5 mm
r1a - Max fillet radius0,8 mm
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