NTN 30311D
Tapered Roller Set - Metric Series
(BRAND)：NTN
(Availability)：In Stock
(EMAIL)：info@noksbearings.com
Technical Specifications
Type
Tapered Roller Bearing
Bore Type
Round
Material
Through Hardened Steel
Limiting Speed - Oil
3800 RPM
Limiting Speed - Grease
2900 RPM
Style
Cone & Cup
Precision Rating
Class 0
Configuration
One
Lubrication
w/o Oil Hole
e (Axial Load Factor)
0.83
Y2 (Axial Load Factor)
0.73
Y0 (Axial Load Factor)
0.40
Static Load Rating
154000 N
Dynamic Load Rating
132000 N
Enclosure
Open
Weight
1.590 kg
Operating Temperature Range
-40 to 120 ºC
Dimensional Specifications
d
55.000 mm
D
120.000 mm
C
21.000 mm
B
29.000 mm
a (Effective Load Center)
-6.500 mm
T
31.500 mm
r
2.000 mm
R
2.0 mm
da
67.0 mm
db
68.0 mm
Da
110.0 mm
Da min
94.0 mm
Db
113.0 mm
