NTN 30311DDF
Tapered Roller Set - Metric Series
(BRAND)：NTN
(Availability)：In Stock
Technical Specifications
Type
Tapered Roller Bearing
Bore Type
Round
Material
Case Carburized Steel
Style
TS Assembly
Precision Rating
Class 0
Configuration
Two
Lubrication
w/o Oil Hole
e (Axial Load Factor)
0.83
Y2 (Axial Load Factor)
0.73
Static Load Rating
179000 N
Dynamic Load Rating
155000 N
Enclosure
Open
Operating Temperature Range
-40 to 120 ºC
Dimensional Specifications
d
55.000 mm
D
120.000 mm
C
21.000 mm
B
42.000 mm
r1as max
2.000 mm
r
1.000 mm
da
67.0 mm
db
68.0 mm
Da
110.0 mm
Da min
94.0 mm
Db
113.0 mm
ras max
2.000 mm
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