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48393/48320

Inch Design Tapered Roller Bearings
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Parts Number
48393/48320 Inch Series Tapered Roller Bearings
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Display units

Parts Number

48393/48320

Boundary Dimensions

d 136.525 mm Bore diameter
D 190.5 mm Outside diameter
T 39.688 mm Total width
B 39.688 mm Width of inner ring
C 33.338 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 265000 N Basic dynamic load rating
C0r 440000 N Basic static load rating

Speeds

Grease 1700 min-1 Grease lubrication
Oil (Oil-bath) 2200 min-1 Oil-bath lubrication

Dimensions

a 35.9 mm Effective load center

Abutment and Fillet Dimensions

da 151 mm Diameter of shaft abutment
Da 177 mm Diameter of housing abutment
db 144 mm Diameter of shaft abutment
Db 184 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 0.32 Constant
Y0 1 Axial load Factors
Y1 1.9 Axial load Factors

Mass

CONE (approx.) 2.31 kg
CUP (approx.) 1.16 kg
CAD
More Information
NSK Product Type2 TRBSR_ID
NSK Product Type Bearing
Designations 48393/48320

© NSK Ltd.

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