NTN 744/742
Tapered Roller Set - Inch Series and J Series
(BRAND)：NTN
(Availability)：In Stock
Technical Specifications
Type
Tapered Roller Bearing
Bore Type
Round
Material
Case Carburized Steel
Style
Cone & Cup
Precision Rating
Class 4
Cone Number
744
Cup Number
742
Configuration
One
Lubrication
w/o Oil Hole
e (Axial Load Factor)
0.33
Y2 (Axial Load Factor)
1.84
Static Load Rating
415000 N
Dynamic Load Rating
287000 N
Enclosure
Open
Operating Temperature Range
-40 to 120 ºC
Dimensional Specifications
B
73.025 mm
D
150.089 mm
Wo
36.513 mm
Wi
46.672 mm
W
44.450 mm
r
3.300 mm
R
3.5 mm
a (Effective Load Center)
-11.900 mm
U
91.0 mm
V
85.0 mm
X
142.0 mm
Z
134.0 mm
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