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1680/1620

Inch Design Tapered Roller Bearings
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Parts Number
1680/1620 Inch Series Tapered Roller Bearings
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Display units

Parts Number

1680/1620

Boundary Dimensions

d 33.338 mm Bore diameter
D 66.675 mm Outside diameter
T 20.638 mm Total width
B 20.638 mm Width of inner ring
C 15.875 mm Width of outer ring
Cup r (min.) 1.5 mm Chamfer dimension of outer ring (Cup)
Cone r (min.) 3.5 mm Chamfer dimension of inner ring (Cone)

Basic Load Ratings

Cr 56500 N Basic dynamic load rating
C0r 53500 N Basic static load rating

Speeds

Grease 5600 min-1 Grease lubrication
Oil (Oil-bath) 7500 min-1 Oil-bath lubrication

Dimensions

a 15.2 mm Effective load center

Abutment and Fillet Dimensions

da 44.5 mm Diameter of shaft abutment
Da 58 mm Diameter of housing abutment
db 38.5 mm Diameter of shaft abutment
Db 61 mm Diameter of housing abutment
ra (max.) 3.5 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 0.37 Constant
Y0 0.89 Axial load Factors
Y1 1.6 Axial load Factors

Mass

CONE (approx.) 0.196 kg
CUP (approx.) 0.121 kg
CAD
More Information
NSK Product Type2 TRBSR_ID
NSK Product Type Bearing
Designations 1680/1620

© NSK Ltd.

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