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399A/394A

Inch Design Tapered Roller Bearings
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Parts Number
399A/394A Inch Series Tapered Roller Bearings
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Display units

Parts Number

399A/394A

Boundary Dimensions

d 68.262 mm Bore diameter
D 110 mm Outside diameter
T 22 mm Total width
B 21.996 mm Width of inner ring
C 18.824 mm Width of outer ring
Cup r (min.) 1.3 mm Chamfer dimension of outer ring (Cup)
Cone r (min.) 2.3 mm Chamfer dimension of inner ring (Cone)

Basic Load Ratings

Cr 105000 N Basic dynamic load rating
C0r 113000 N Basic static load rating

Speeds

Grease 3200 min-1 Grease lubrication
Oil (Oil-bath) 4300 min-1 Oil-bath lubrication

Dimensions

a 20.9 mm Effective load center

Abutment and Fillet Dimensions

da 78 mm Diameter of shaft abutment
Da 101 mm Diameter of housing abutment
db 74 mm Diameter of shaft abutment
Db 104 mm Diameter of housing abutment
ra (max.) 2.3 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 0.4 Constant
Y0 0.82 Axial load Factors
Y1 1.5 Axial load Factors

Mass

CONE (approx.) 0.497 kg
CUP (approx.) 0.263 kg
CAD
More Information
NSK Product Type2 TRBSR_ID
NSK Product Type Bearing
Designations 399A/394A

© NSK Ltd.

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