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HM88638/HM88610

Inch Design Tapered Roller Bearings
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Parts Number
HM88638/HM88610 Inch Series Tapered Roller Bearings
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Display units

Parts Number

HM88638/HM88610

Boundary Dimensions

d 32 mm Bore diameter
D 72.233 mm Outside diameter
T 25.4 mm Total width
B 25.4 mm Width of inner ring
C 19.842 mm Width of outer ring
Cup r (min.) 2.3 mm Chamfer dimension of outer ring (Cup)
Cone r (min.) 3.3 mm Chamfer dimension of inner ring (Cone)

Basic Load Ratings

Cr 78000 N Basic dynamic load rating
C0r 83500 N Basic static load rating

Speeds

Grease 5000 min-1 Grease lubrication
Oil (Oil-bath) 7100 min-1 Oil-bath lubrication

Dimensions

a 20.7 mm Effective load center

Abutment and Fillet Dimensions

da 48.5 mm Diameter of shaft abutment
Da 60 mm Diameter of housing abutment
db 42.5 mm Diameter of shaft abutment
Db 60 mm Diameter of housing abutment
ra (max.) 3.3 mm Radius of shaft or housing fillet of inner ring
ra (max.) 2.3 mm Radius of shaft or housing fillet of outer ring

Calculation factors

e 0.55 Constant
Y0 0.6 Axial load Factors
Y1 1.1 Axial load Factors

Mass

CONE (approx.) 0.337 kg
CUP (approx.) 0.188 kg
CAD
More Information
NSK Product Type2 TRBSR_ID
NSK Product Type Bearing
Designations HM88638/HM88610

© NSK Ltd.

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