NSK HR31311J
Metric Series Tapered Roller Bearings
(BRAND)：NSK
(Availability)：In Stock
Designations
HR31311J
Dimension series
ISO
7FB
ISO355 dimension series approx.
Boundary Dimensions
d
55
mm
Bore diameter
D
120
mm
Outside diameter
T
31.5
mm
Total width
B
29
mm
Width of inner ring
C
21
mm
Width of outer ring
Cup r (min.)
2
mm
Chamfer dimension of outer ring (Cup)
Cone r (min.)
2.5
mm
Chamfer dimension of inner ring (Cone)
Basic Load Ratings
Cr
161000
N
Basic dynamic load rating
C0r
153000
N
Basic static load rating
Speeds
Grease
2800
min-1
Grease lubrication
Oil (Oil-bath)
4000
min-1
Oil-bath lubrication
a
37
mm
Effective load center
