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Single row tapered roller bearings

4T-HM911242/HM911210 - NTN

4T-HM911242/HM911210

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 diameter53,975 mm
D - External diameter130,175 mm
B - Bearing/Inner ring width33,338 mm
C - Outer ring width23,812 mm
T - Total width36,512 mm
d1 - External diameter inner ring97,5 mm
a - Charge load application point41,712 mm
Mass2,28 kg
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PRODUCT PERFORMANCE
C - Dynamic load173 kN
C0 - Static load186 kN
Cu - Fatigue limit load22,7 kN
A2 - Rating life coefficient1
e - Coefficient0.82
Y0 - Static axial load coefficient0.4
Y2 - Upper axial load coefficient0.73
N lim - Oil lubrication limit speed3600 tr/min
N lim - Grease lubrication limit speed2700 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da max - Max shoulder diameter IR74 mm
db min - Min IR shoulder diameter79 mm
Da max - Max shoulder diameter OR109 mm
Db min - Min OR shoulder diameter124 mm
ra max - Max fillet radius3,5 mm
r1a - Max fillet radius3,3 mm
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