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42687/42620

Inch Design Tapered Roller Bearings
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Parts Number
42687/42620 Inch Series Tapered Roller Bearings
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Display units

Parts Number

42687/42620

Boundary Dimensions

d 76.2 mm Bore diameter
D 127 mm Outside diameter
T 30.162 mm Total width
B 31 mm Width of inner ring
C 22.225 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 170000 N Basic dynamic load rating
C0r 194000 N Basic static load rating

Speeds

Grease 2800 min-1 Grease lubrication
Oil (Oil-bath) 3800 min-1 Oil-bath lubrication

Dimensions

a 27.3 mm Effective load center

Abutment and Fillet Dimensions

da 90 mm Diameter of shaft abutment
Da 114 mm Diameter of housing abutment
db 84 mm Diameter of shaft abutment
Db 121 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 0.42 Constant
Y0 0.79 Axial load Factors
Y1 1.4 Axial load Factors

Mass

CONE (approx.) 1.03 kg
CUP (approx.) 0.438 kg
CAD
More Information
NSK Product Type2 TRBSR_ID
NSK Product Type Bearing
Designations 42687/42620

© NSK Ltd.

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