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15578/15520

Inch Design Tapered Roller Bearings
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Parts Number
15578/15520 Inch Series Tapered Roller Bearings
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Display units

Parts Number

15578/15520

Boundary Dimensions

d 25.4 mm Bore diameter
D 57.15 mm Outside diameter
T 17.462 mm Total width
B 17.462 mm Width of inner ring
C 13.495 mm Width of outer ring
Cup r (min.) 1.5 mm Chamfer dimension of outer ring (Cup)
Cone r (min.) 1.3 mm Chamfer dimension of inner ring (Cone)

Basic Load Ratings

Cr 49000 N Basic dynamic load rating
C0r 45500 N Basic static load rating

Speeds

Grease 6700 min-1 Grease lubrication
Oil (Oil-bath) 9000 min-1 Oil-bath lubrication

Dimensions

a 12.4 mm Effective load center

Abutment and Fillet Dimensions

da 32.5 mm Diameter of shaft abutment
Da 51 mm Diameter of housing abutment
db 30.5 mm Diameter of shaft abutment
Db 53 mm Diameter of housing abutment
ra (max.) 1.3 mm Radius of shaft or housing fillet of inner ring
ra (max.) 1.5 mm Radius of shaft or housing fillet of outer ring

Calculation factors

e 0.35 Constant
Y0 0.95 Axial load Factors
Y1 1.7 Axial load Factors

Mass

CONE (approx.) 0.151 kg
CUP (approx.) 0.07 kg
CAD
More Information
NSK Product Type2 TRBSR_ID
NSK Product Type Bearing
Designations 15578/15520

© NSK Ltd.

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