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9185/9121

Inch Design Tapered Roller Bearings
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Parts Number
9185/9121 Inch Series Tapered Roller Bearings
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Display units

Parts Number

9185/9121

Boundary Dimensions

d 68.262 mm Bore diameter
D 152.4 mm Outside diameter
T 47.625 mm Total width
B 46.038 mm Width of inner ring
C 31.75 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 292000 N Basic dynamic load rating
C0r 267000 N Basic static load rating

Speeds

Grease 2400 min-1 Grease lubrication
Oil (Oil-bath) 3400 min-1 Oil-bath lubrication

Dimensions

a 44.3 mm Effective load center

Abutment and Fillet Dimensions

da 94 mm Diameter of shaft abutment
Da 130 mm Diameter of housing abutment
db 81 mm Diameter of shaft abutment
Db 145 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 0.66 Constant
Y0 0.5 Axial load Factors
Y1 0.92 Axial load Factors

Mass

CONE (approx.) 2.53 kg
CUP (approx.) 1.21 kg
CAD
More Information
NSK Product Type2 TRBSR_ID
NSK Product Type Bearing
Designations 9185/9121

© NSK Ltd.

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