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1997X/1922

Inch Design Tapered Roller Bearings
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Parts Number
1997X/1922 Inch Series Tapered Roller Bearings
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Display units

Parts Number

1997X/1922

Boundary Dimensions

d 26.988 mm Bore diameter
D 57.15 mm Outside diameter
T 19.845 mm Total width
B 19.355 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.) 3.3 mm Chamfer dimension of inner ring (Cone)

Basic Load Ratings

Cr 49500 N Basic dynamic load rating
C0r 44500 N Basic static load rating

Speeds

Grease 6700 min-1 Grease lubrication
Oil (Oil-bath) 9000 min-1 Oil-bath lubrication

Dimensions

a 13.9 mm Effective load center

Abutment and Fillet Dimensions

da 37.5 mm Diameter of shaft abutment
Da 51 mm Diameter of housing abutment
db 31.5 mm Diameter of shaft abutment
Db 53.5 mm Diameter of housing abutment
ra (max.) 3.3 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 0.33 Constant
Y0 1 Axial load Factors
Y1 1.8 Axial load Factors

Mass

CONE (approx.) 0.152 kg
CUP (approx.) 0.077 kg
CAD
More Information
NSK Product Type2 TRBSR_ID
NSK Product Type Bearing
Designations 1997X/1922

© NSK Ltd.

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