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74500/74850

Inch Design Tapered Roller Bearings
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Parts Number
74500/74850 Inch Series Tapered Roller Bearings
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Display units

Parts Number

74500/74850

Boundary Dimensions

d 127 mm Bore diameter
D 215.9 mm Outside diameter
T 47.625 mm Total width
B 47.625 mm Width of inner ring
C 34.925 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 355000 N Basic dynamic load rating
C0r 495000 N Basic static load rating

Speeds

Grease 1500 min-1 Grease lubrication
Oil (Oil-bath) 2000 min-1 Oil-bath lubrication

Dimensions

a 48.4 mm Effective load center

Abutment and Fillet Dimensions

da 148 mm Diameter of shaft abutment
Da 196 mm Diameter of housing abutment
db 141 mm Diameter of shaft abutment
Db 208 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 0.49 Constant
Y0 0.68 Axial load Factors
Y1 1.2 Axial load Factors

Mass

CONE (approx.) 4.92 kg
CUP (approx.) 1.99 kg
CAD
More Information
NSK Product Type2 TRBSR_ID
NSK Product Type Bearing
Designations 74500/74850

© NSK Ltd.

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