NSK 661/653
Inch Series Tapered Roller Bearings
(BRAND)：NSK
(Availability)：In Stock
(EMAIL)：info@noksbearings.com
Designations
661/653
Boundary Dimensions
d
79.375
mm
Bore diameter
D
146.05
mm
Outside diameter
T
41.275
mm
Total width
B
41.275
mm
Width of inner ring
C
31.75
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
254000
N
Basic dynamic load rating
C0r
296000
N
Basic static load rating
Speeds
Grease
2400
min-1
Grease lubrication
Oil (Oil-bath)
3200
min-1
Oil-bath lubrication
a
33.2
mm
Effective load center
Dimensions
da
96
mm
Diameter of shaft abutment
Da
131
mm
Diameter of housing abutment
db
90
mm
Diameter of shaft abutment
Db
139
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
