NTN 557A/552
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
557A
Cup Number
552
Configuration
One
Lubrication
w/o Oil Hole
e (Axial Load Factor)
0.35
Y2 (Axial Load Factor)
1.73
Static Load Rating
245000 N
Dynamic Load Rating
173000 N
Enclosure
Open
Operating Temperature Range
-40 to 120 ºC
Dimensional Specifications
B
60.325 mm
D
123.825 mm
Wo
33.338 mm
Wi
36.678 mm
W
38.100 mm
r
3.300 mm
R
8.0 mm
a (Effective Load Center)
-9.400 mm
U
84.0 mm
V
69.0 mm
X
116.0 mm
Z
109.0 mm
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