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HM212047/HM212011

Inch Design Tapered Roller Bearings
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Parts Number
HM212047/HM212011 Inch Series Tapered Roller Bearings
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Display units

Parts Number

HM212047/HM212011

Boundary Dimensions

d 63.5 mm Bore diameter
D 122.238 mm Outside diameter
T 38.1 mm Total width
B 38.354 mm Width of inner ring
C 29.718 mm Width of outer ring
Cup r (min.) 3.3 mm Chamfer dimension of outer ring (Cup)
Cone r (min.) 7 mm Chamfer dimension of inner ring (Cone)

Basic Load Ratings

Cr 231000 N Basic dynamic load rating
C0r 245000 N Basic static load rating

Speeds

Grease 3000 min-1 Grease lubrication
Oil (Oil-bath) 4000 min-1 Oil-bath lubrication

Dimensions

a 26.9 mm Effective load center

Abutment and Fillet Dimensions

da 87 mm Diameter of shaft abutment
Da 108 mm Diameter of housing abutment
db 73 mm Diameter of shaft abutment
Db 116 mm Diameter of housing abutment
ra (max.) 7 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 0.34 Constant
Y0 0.98 Axial load Factors
Y1 1.8 Axial load Factors

Mass

CONE (approx.) 1.34 kg
CUP (approx.) 0.598 kg
CAD
More Information
NSK Product Type2 TRBSR_ID
NSK Product Type Bearing
Designations HM212047/HM212011

© NSK Ltd.

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