NSK 74550/74850
Inch Series Tapered Roller Bearings
(BRAND)：NSK
(Availability)：In Stock
(EMAIL)：info@noksbearings.com
Designations
74550/74850
Boundary Dimensions
d
139.7
mm
Bore diameter
D
215.9
mm
Outside diameter
T
47.625
mm
Total width
B
47.625
mm
Width of inner ring
C
34.925
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
355000
N
Basic dynamic load rating
C0r
495000
N
Basic static load rating
Speeds
Grease
1500
min-1
Grease lubrication
Oil (Oil-bath)
2000
min-1
Oil-bath lubrication
a
48.4
mm
Effective load center
Dimensions
da
158
mm
Diameter of shaft abutment
Da
196
mm
Diameter of housing abutment
db
151
mm
Diameter of shaft abutment
Db
208
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
