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657/653

Inch Design Tapered Roller Bearings
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Parts Number
657/653 Inch Series Tapered Roller Bearings
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Parts Number

657/653

Boundary Dimensions

d 73.025 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

Dimensions

a 33.2 mm Effective load center

Abutment and Fillet Dimensions

da 91 mm Diameter of shaft abutment
Da 131 mm Diameter of housing abutment
db 85 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

Calculation factors

e 0.41 Constant
Y0 0.81 Axial load Factors
Y1 1.5 Axial load Factors

Mass

CONE (approx.) 2.24 kg
CUP (approx.) 0.891 kg
CAD
More Information
NSK Product Type2 TRBSR_ID
NSK Product Type Bearing
Designations 657/653

© NSK Ltd.

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