NTN 778/772
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
778
Cup Number
772
Configuration
One
Lubrication
w/o Oil Hole
e (Axial Load Factor)
0.39
Y2 (Axial Load Factor)
1.56
Static Load Rating
490000 N
Dynamic Load Rating
315000 N
Enclosure
Open
Operating Temperature Range
-40 to 120 ºC
Dimensional Specifications
B
92.075 mm
D
180.975 mm
Wo
38.100 mm
Wi
48.006 mm
W
47.625 mm
r
3.300 mm
R
3.5 mm
a (Effective Load Center)
-8.100 mm
U
111.0 mm
V
105.0 mm
X
168.0 mm
Z
161.0 mm
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