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581/572X

Inch Design Tapered Roller Bearings
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Parts Number
581/572X Inch Series Tapered Roller Bearings
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Display units

Parts Number

581/572X

Boundary Dimensions

d 80.962 mm Bore diameter
D 139.7 mm Outside diameter
T 36.512 mm Total width
B 36.098 mm Width of inner ring
C 28.575 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 215000 N Basic dynamic load rating
C0r 260000 N Basic static load rating

Speeds

Grease 2600 min-1 Grease lubrication
Oil (Oil-bath) 3400 min-1 Oil-bath lubrication

Dimensions

a 31.1 mm Effective load center

Abutment and Fillet Dimensions

da 96 mm Diameter of shaft abutment
Da 125 mm Diameter of housing abutment
db 90 mm Diameter of shaft abutment
Db 133 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 0.4 Constant
Y0 0.82 Axial load Factors
Y1 1.5 Axial load Factors

Mass

CONE (approx.) 1.44 kg
CUP (approx.) 0.774 kg
CAD
More Information
NSK Product Type2 TRBSR_ID
NSK Product Type Bearing
Designations 581/572X

© NSK Ltd.

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