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1779/1729

Inch Design Tapered Roller Bearings
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Parts Number
1779/1729 Inch Series Tapered Roller Bearings
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Display units

Parts Number

1779/1729

Boundary Dimensions

d 23.812 mm Bore diameter
D 56.896 mm Outside diameter
T 19.368 mm Total width
B 19.837 mm Width of inner ring
C 15.875 mm Width of outer ring
Cup r (min.) 1.3 mm Chamfer dimension of outer ring (Cup)
Cone r (min.) 0.8 mm Chamfer dimension of inner ring (Cone)

Basic Load Ratings

Cr 47000 N Basic dynamic load rating
C0r 40500 N Basic static load rating

Speeds

Grease 7100 min-1 Grease lubrication
Oil (Oil-bath) 9500 min-1 Oil-bath lubrication

Dimensions

a 12.2 mm Effective load center

Abutment and Fillet Dimensions

da 29.5 mm Diameter of shaft abutment
Da 49 mm Diameter of housing abutment
db 28.5 mm Diameter of shaft abutment
Db 51 mm Diameter of housing abutment
ra (max.) 0.8 mm Radius of shaft or housing fillet of inner ring
ra (max.) 1.3 mm Radius of shaft or housing fillet of outer ring

Calculation factors

e 0.31 Constant
Y0 1.1 Axial load Factors
Y1 2 Axial load Factors

Mass

CONE (approx.) 0.143 kg
CUP (approx.) 0.102 kg
CAD
More Information
NSK Product Type2 TRBSR_ID
NSK Product Type Bearing
Designations 1779/1729

© NSK Ltd.

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