NSK JM612949/JM612910
Inch Series Tapered Roller Bearings
(BRAND)：NSK
(Availability)：In Stock
Designations
JM612949/JM612910
Boundary Dimensions
d
70
mm
Bore diameter
D
115
mm
Outside diameter
T
29
mm
Total width
B
29
mm
Width of inner ring
C
23
mm
Width of outer ring
Cup r (min.)
2.5
mm
Chamfer dimension of outer ring (Cup)
Cone r (min.)
3
mm
Chamfer dimension of inner ring (Cone)
Basic Load Ratings
Cr
155000
N
Basic dynamic load rating
C0r
177000
N
Basic static load rating
Speeds
Grease
3000
min-1
Grease lubrication
Oil (Oil-bath)
4000
min-1
Oil-bath lubrication
a
25.9
mm
Effective load center
Dimensions
da
83
mm
Diameter of shaft abutment
Da
103
mm
Diameter of housing abutment
db
77
mm
Diameter of shaft abutment
Db
110
mm
Diameter of housing abutment
ra (max.)
3
mm
Radius of shaft or housing fillet of inner ring
ra (max.)
2.5
mm
Radius of shaft or housing fillet of outer ring
