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4T-HM218248/HM218210 - NTN

4T-HM218248/HM218210

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 diameter89,974 mm
D - External diameter146,975 mm
B - Bearing/Inner ring width40 mm
C - Outer ring width32,5 mm
T - Total width40 mm
d1 - External diameter inner ring117,5 mm
a - Charge load application point31,4 mm
Mass2,55 kg
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PRODUCT PERFORMANCE
C - Dynamic load227 kN
C0 - Static load340 kN
Cu - Fatigue limit load39,4 kN
A2 - Rating life coefficient1
e - Coefficient0.33
Y0 - Static axial load coefficient0.99
Y2 - Upper axial load coefficient1.8
N lim - Oil lubrication limit speed3200 tr/min
N lim - Grease lubrication limit speed2400 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da max - Max shoulder diameter IR99 mm
db min - Min IR shoulder diameter112 mm
Da max - Max shoulder diameter OR133 mm
Db min - Min OR shoulder diameter141 mm
ra max - Max fillet radius7 mm
r1a - Max fillet radius3,5 mm
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