NSK 749/742
Inch Series Tapered Roller Bearings
(BRAND)：NSK
(Availability)：In Stock
Designations
749/742
Boundary Dimensions
d
85.026
mm
Bore diameter
D
150.089
mm
Outside diameter
T
44.45
mm
Total width
B
46.672
mm
Width of inner ring
C
36.512
mm
Width of outer ring
Cup r (min.)
3.3
mm
Chamfer dimension of outer ring (Cup)
Cone r (min.)
3.5
mm
Chamfer dimension of inner ring (Cone)
Basic Load Ratings
Cr
325000
N
Basic dynamic load rating
C0r
370000
N
Basic static load rating
Speeds
Grease
2400
min-1
Grease lubrication
Oil (Oil-bath)
3200
min-1
Oil-bath lubrication
a
32.5
mm
Effective load center
Dimensions
da
101
mm
Diameter of shaft abutment
Da
134
mm
Diameter of housing abutment
db
95
mm
Diameter of shaft abutment
Db
142
mm
Diameter of housing abutment
ra (max.)
3.5
mm
Radius of shaft or housing fillet of inner ring
ra (max.)
3.3
mm
Radius of shaft or housing fillet of outer ring
